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103313020123 = 731415246851
BaseRepresentation
bin110000000110111101…
…1111001010011011011
3100212200001200012110201
41200031323321103123
53143041113120443
6115243352323031
710315123116205
oct1401573712333
9325601605421
10103313020123
113a8a6563165
12180333a3477
139986000191
145001069775
152a4a01034d
hex180def94db

103313020123 has 4 divisors (see below), whose sum is σ = 104728267048. Its totient is φ = 101897773200.

The previous prime is 103313020117. The next prime is 103313020127. The reversal of 103313020123 is 321020313301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321020313301 = 1092945140489.

It is a cyclic number.

It is not a de Polignac number, because 103313020123 - 25 = 103313020091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103313020123.

It is not an unprimeable number, because it can be changed into a prime (103313020127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707623353 + ... + 707623498.

It is an arithmetic number, because the mean of its divisors is an integer number (26182066762).

Almost surely, 2103313020123 is an apocalyptic number.

103313020123 is a deficient number, since it is larger than the sum of its proper divisors (1415246925).

103313020123 is an equidigital number, since it uses as much as digits as its factorization.

103313020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415246924.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 103313020123 its reverse (321020313301), we get a palindrome (424333333424).

The spelling of 103313020123 in words is "one hundred three billion, three hundred thirteen million, twenty thousand, one hundred twenty-three".

Divisors: 1 73 1415246851 103313020123