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122113123 = 1131358103
BaseRepresentation
bin1110100011101…
…00110001100011
322111202222201021
413101310301203
5222230104443
620041150311
73011641636
oct721646143
9274688637
10122113123
1162a25440
1234a8b397
131c3b69b2
1412309c1d
15aac19ed
hex7474c63

122113123 has 8 divisors (see below), whose sum is σ = 137511936. Its totient is φ = 107430600.

The previous prime is 122113109. The next prime is 122113139. The reversal of 122113123 is 321311221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122113123 - 29 = 122112611 is a prime.

It is a super-2 number, since 2×1221131232 = 29823229617626258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122113097 and 122113106.

It is not an unprimeable number, because it can be changed into a prime (122113423) 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, 178711 + ... + 179392.

It is an arithmetic number, because the mean of its divisors is an integer number (17188992).

Almost surely, 2122113123 is an apocalyptic number.

122113123 is a deficient number, since it is larger than the sum of its proper divisors (15398813).

122113123 is a wasteful number, since it uses less digits than its factorization.

122113123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358145.

The product of its digits is 72, while the sum is 16.

The square root of 122113123 is about 11050.4806682786. The cubic root of 122113123 is about 496.1208123048.

Adding to 122113123 its reverse (321311221), we get a palindrome (443424344).

The spelling of 122113123 in words is "one hundred twenty-two million, one hundred thirteen thousand, one hundred twenty-three".

Divisors: 1 11 31 341 358103 3939133 11101193 122113123