131021003120402 has 32 divisors (see below), whose sum is σ = 200223338616000. Its totient is φ = 64287497976768.

The previous prime is 131021003120309. The next prime is 131021003120429. The reversal of 131021003120402 is 204021300120131.

131021003120402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×131021003120402³ (a number of 43 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100609724 + ... + 101903672.

It is an arithmetic number, because the mean of its divisors is an integer number (6256979331750).

Almost surely, 2^{131021003120402} is an apocalyptic number.

131021003120402 is a deficient number, since it is larger than the sum of its proper divisors (69202335495598).

131021003120402 is a wasteful number, since it uses less digits than its factorization.

131021003120402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296890.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 131021003120402 its reverse (204021300120131), we get a palindrome (335042303240533).

The spelling of 131021003120402 in words is "one hundred thirty-one trillion, twenty-one billion, three million, one hundred twenty thousand, four hundred two".