123402112032330 has 128 divisors (see below), whose sum is σ = 338074935494400. Its totient is φ = 32007538789632.

The previous prime is 123402112032323. The next prime is 123402112032347. The reversal of 123402112032330 is 33230211204321.

123402112032330 is a `hidden beast` number, since 1 + 2 + 3 + 402 + 1 + 1 + 20 + 3 + 233 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 123402112032294 and 123402112032303.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29072329 + ... + 33045491.

It is an arithmetic number, because the mean of its divisors is an integer number (2641210433550).

Almost surely, 2^{123402112032330} is an apocalyptic number.

123402112032330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123402112032330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169037467747200).

123402112032330 is an abundant number, since it is smaller than the sum of its proper divisors (214672823462070).

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

123402112032330 is a wasteful number, since it uses less digits than its factorization.

123402112032330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3976325 (or 3976319 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 123402112032330 its reverse (33230211204321), we get a palindrome (156632323236651).

The spelling of 123402112032330 in words is "one hundred twenty-three trillion, four hundred two billion, one hundred twelve million, thirty-two thousand, three hundred thirty".