121331123321112 has 96 divisors (see below), whose sum is σ = 345905584455600. Its totient is φ = 38314487642112.

The previous prime is 121331123321081. The next prime is 121331123321147. The reversal of 121331123321112 is 211123321133121.

121331123321112 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 311 + 2 + 332 + 1 + 1 + 12 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90466368 + ... + 91797744.

Almost surely, 2^{121331123321112} is an apocalyptic number.

121331123321112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121331123321112 is an abundant number, since it is smaller than the sum of its proper divisors (224574461134488).

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

121331123321112 is a wasteful number, since it uses less digits than its factorization.

121331123321112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398025 (or 1398018 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

Adding to 121331123321112 its reverse (211123321133121), we get a palindrome (332454444454233).

The spelling of 121331123321112 in words is "one hundred twenty-one trillion, three hundred thirty-one billion, one hundred twenty-three million, three hundred twenty-one thousand, one hundred twelve".