121231313033112 has 40 divisors (see below), whose sum is σ = 339559927710300. Its totient is φ = 40410437677488.

The previous prime is 121231313033071. The next prime is 121231313033119. The reversal of 121231313033112 is 211330313132121.

121231313033112 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 3 + 1 + 313 + 0 + 331 + 12 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121231313033119) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 93542679162 + ... + 93542680457.

Almost surely, 2^{121231313033112} is an apocalyptic number.

121231313033112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121231313033112 is an abundant number, since it is smaller than the sum of its proper divisors (218328614677188).

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

121231313033112 is a wasteful number, since it uses less digits than its factorization.

121231313033112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187085359637 (or 187085359624 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 121231313033112 its reverse (211330313132121), we get a palindrome (332561626165233).

Subtracting 121231313033112 from its reverse (211330313132121), we obtain a palindrome (90099000099009).

The spelling of 121231313033112 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, three hundred thirteen million, thirty-three thousand, one hundred twelve".