123103111212320 has 96 divisors (see below), whose sum is σ = 292709265030000. Its totient is φ = 48923303510016.

The previous prime is 123103111212293. The next prime is 123103111212383. The reversal of 123103111212320 is 23212111301321.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 79545064790416 + 43558046421904 = 8918804^2 + 6599852^2 .

It is a super-2 number, since 2×123103111212320² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293418056 + ... + 293837304.

Almost surely, 2^{123103111212320} is an apocalyptic number.

123103111212320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123103111212320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146354632515000).

123103111212320 is an abundant number, since it is smaller than the sum of its proper divisors (169606153817680).

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

123103111212320 is a wasteful number, since it uses less digits than its factorization.

123103111212320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431110 (or 431102 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 123103111212320 its reverse (23212111301321), we get a palindrome (146315222513641).

The spelling of 123103111212320 in words is "one hundred twenty-three trillion, one hundred three billion, one hundred eleven million, two hundred twelve thousand, three hundred twenty".