121232013312 has 48 divisors (see below), whose sum is σ = 323206458120. Its totient is φ = 40410669056.

The previous prime is 121232013307. The next prime is 121232013421. The reversal of 121232013312 is 213310232121.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9859743 + ... + 9872030.

Almost surely, 2^121232013312 is an apocalyptic number.

121232013312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121232013312 is an abundant number, since it is smaller than the sum of its proper divisors (201974444808).

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

121232013312 is an equidigital number, since it uses as much as digits as its factorization.

121232013312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19731798 (or 19731778 counting only the distinct ones).

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

Adding to 121232013312 its reverse (213310232121), we get a palindrome (334542245433).

The spelling of 121232013312 in words is "one hundred twenty-one billion, two hundred thirty-two million, thirteen thousand, three hundred twelve".