121400101312 has 42 divisors (see below), whose sum is σ = 280234488552. Its totient is φ = 52028613504.

The previous prime is 121400101283. The next prime is 121400101349. The reversal of 121400101312 is 213101004121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19352748 + ... + 19359019.

Almost surely, 2^121400101312 is an apocalyptic number.

It is an amenable number.

121400101312 is an abundant number, since it is smaller than the sum of its proper divisors (158834387240).

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

121400101312 is an equidigital number, since it uses as much as digits as its factorization.

121400101312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38711793 (or 38711776 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121400101312 its reverse (213101004121), we get a palindrome (334501105433).

The spelling of 121400101312 in words is "one hundred twenty-one billion, four hundred million, one hundred one thousand, three hundred twelve".