121331203002 has 48 divisors (see below), whose sum is σ = 266645066688. Its totient is φ = 39865815360.

The previous prime is 121331203001. The next prime is 121331203043. The reversal of 121331203002 is 200302133121.

121331203002 is a `hidden beast` number, since 12 + 1 + 331 + 20 + 300 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (121331203001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2237227 + ... + 2290817.

It is an arithmetic number, because the mean of its divisors is an integer number (5555105556).

Almost surely, 2^121331203002 is an apocalyptic number.

121331203002 is an abundant number, since it is smaller than the sum of its proper divisors (145313863686).

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

121331203002 is a wasteful number, since it uses less digits than its factorization.

121331203002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55395 (or 55392 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 121331203002 its reverse (200302133121), we get a palindrome (321633336123).

The spelling of 121331203002 in words is "one hundred twenty-one billion, three hundred thirty-one million, two hundred three thousand, two".