Search a number
-
+
103121020120122 = 2331909648520743
BaseRepresentation
bin10111011100100110111011…
…110001011110110000111010
3111112010021101012021212222000
4113130212323301132300322
5102004013322122320442
61003153050451241430
730502151003352024
oct2734467361366072
9445107335255860
10103121020120122
112a948419553354
12b695664ba9276
1345703692c3384
141b67126719014
15bdc633821d4c
hex5dc9bbc5ec3a

103121020120122 has 16 divisors (see below), whose sum is σ = 229157822489280. Its totient is φ = 34373673373356.

The previous prime is 103121020120121. The next prime is 103121020120147. The reversal of 103121020120122 is 221021020121301.

103121020120122 is a `hidden beast` number, since 1 + 0 + 31 + 210 + 201 + 201 + 22 = 666.

It is a super-2 number, since 2×1031210201201222 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 103121020120095 and 103121020120104.

It is not an unprimeable number, because it can be changed into a prime (103121020120121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 954824260318 + ... + 954824260425.

It is an arithmetic number, because the mean of its divisors is an integer number (14322363905580).

Almost surely, 2103121020120122 is an apocalyptic number.

103121020120122 is an abundant number, since it is smaller than the sum of its proper divisors (126036802369158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103121020120122 is a wasteful number, since it uses less digits than its factorization.

103121020120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909648520754 (or 1909648520748 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 103121020120122 its reverse (221021020121301), we get a palindrome (324142040241423).

The spelling of 103121020120122 in words is "one hundred three trillion, one hundred twenty-one billion, twenty million, one hundred twenty thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 1909648520743 3819297041486 5728945562229 11457891124458 17186836686687 34373673373374 51560510060061 103121020120122