121310331024 has 40 divisors (see below), whose sum is σ = 313918970400. Its totient is φ = 40367880448.

The previous prime is 121310331019. The next prime is 121310331029. The reversal of 121310331024 is 420133013121.

It is an interprime number because it is at equal distance from previous prime (121310331019) and next prime (121310331029).

It is not an unprimeable number, because it can be changed into a prime (121310331029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2124549 + ... + 2180900.

It is an arithmetic number, because the mean of its divisors is an integer number (7847974260).

Almost surely, 2^121310331024 is an apocalyptic number.

It is an amenable number.

121310331024 is an abundant number, since it is smaller than the sum of its proper divisors (192608639376).

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

121310331024 is a wasteful number, since it uses less digits than its factorization.

121310331024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4306047 (or 4306041 counting only the distinct ones).

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

Adding to 121310331024 its reverse (420133013121), we get a palindrome (541443344145).

The spelling of 121310331024 in words is "one hundred twenty-one billion, three hundred ten million, three hundred thirty-one thousand, twenty-four".