121312233102 has 32 divisors (see below), whose sum is σ = 250582717440. Its totient is φ = 39112407360.

The previous prime is 121312233061. The next prime is 121312233173. The reversal of 121312233102 is 201332213121.

It is a congruent number.

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, 185349 + ... + 526287.

It is an arithmetic number, because the mean of its divisors is an integer number (7830709920).

Almost surely, 2^121312233102 is an apocalyptic number.

121312233102 is an abundant number, since it is smaller than the sum of its proper divisors (129270484338).

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

121312233102 is a wasteful number, since it uses less digits than its factorization.

121312233102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342888.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121312233102 its reverse (201332213121), we get a palindrome (322644446223).

The spelling of 121312233102 in words is "one hundred twenty-one billion, three hundred twelve million, two hundred thirty-three thousand, one hundred two".