121002003312 has 40 divisors (see below), whose sum is σ = 316545335040. Its totient is φ = 39823442880.

The previous prime is 121002003289. The next prime is 121002003347. The reversal of 121002003312 is 213300200121.

It is a junction number, because it is equal to n+sod(n) for n = 121002003291 and 121002003300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15951114 + ... + 15958697.

It is an arithmetic number, because the mean of its divisors is an integer number (7913633376).

Almost surely, 2^121002003312 is an apocalyptic number.

121002003312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121002003312 is an abundant number, since it is smaller than the sum of its proper divisors (195543331728).

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

121002003312 is a wasteful number, since it uses less digits than its factorization.

121002003312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31909901 (or 31909895 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 121002003312 its reverse (213300200121), we get a palindrome (334302203433).

The spelling of 121002003312 in words is "one hundred twenty-one billion, two million, three thousand, three hundred twelve".