123121112214402 has 80 divisors (see below), whose sum is σ = 276131581906752. Its totient is φ = 41003333028000.

The previous prime is 123121112214389. The next prime is 123121112214433. The reversal of 123121112214402 is 204412211121321.

123121112214402 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 21 + 11 + 221 + 4 + 402 = 666.

It is a super-2 number, since 2×123121112214402² (a number of 29 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 806920723 + ... + 807073289.

Almost surely, 2^{123121112214402} is an apocalyptic number.

123121112214402 is an abundant number, since it is smaller than the sum of its proper divisors (153010469692350).

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

123121112214402 is a wasteful number, since it uses less digits than its factorization.

123121112214402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157045 (or 157036 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 123121112214402 its reverse (204412211121321), we get a palindrome (327533323335723).

The spelling of 123121112214402 in words is "one hundred twenty-three trillion, one hundred twenty-one billion, one hundred twelve million, two hundred fourteen thousand, four hundred two".