131211211120402 has 16 divisors (see below), whose sum is σ = 225017030094912. Its totient is φ = 56212494865200.

The previous prime is 131211211120219. The next prime is 131211211120403. The reversal of 131211211120402 is 204021112112131.

It is not an unprimeable number, because it can be changed into a prime (131211211120403) 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, 1740071724 + ... + 1740147127.

It is an arithmetic number, because the mean of its divisors is an integer number (14063564380932).

Almost surely, 2^{131211211120402} is an apocalyptic number.

131211211120402 is a deficient number, since it is larger than the sum of its proper divisors (93805818974510).

131211211120402 is a wasteful number, since it uses less digits than its factorization.

131211211120402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480221553.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 131211211120402 its reverse (204021112112131), we get a palindrome (335232323232533).

The spelling of 131211211120402 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred eleven million, one hundred twenty thousand, four hundred two".