121940990364 has 48 divisors (see below), whose sum is σ = 287557754400. Its totient is φ = 40214593536.

The previous prime is 121940990363. The next prime is 121940990399. The reversal of 121940990364 is 463099049121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121940990363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3859222 + ... + 3890690.

It is an arithmetic number, because the mean of its divisors is an integer number (5990786550).

Almost surely, 2^121940990364 is an apocalyptic number.

It is an amenable number.

121940990364 is an abundant number, since it is smaller than the sum of its proper divisors (165616764036).

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

121940990364 is a wasteful number, since it uses less digits than its factorization.

121940990364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34902 (or 34900 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

The spelling of 121940990364 in words is "one hundred twenty-one billion, nine hundred forty million, nine hundred ninety thousand, three hundred sixty-four".