131311002 has 32 divisors (see below), whose sum is σ = 281457792. Its totient is φ = 40734144.

The previous prime is 131311001. The next prime is 131311027. The reversal of 131311002 is 200113131.

It is not an unprimeable number, because it can be changed into a prime (131311001) 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, 7753 + ... + 17964.

It is an arithmetic number, because the mean of its divisors is an integer number (8795556).

Almost surely, 2^131311002 is an apocalyptic number.

131311002 is an abundant number, since it is smaller than the sum of its proper divisors (150146790).

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

131311002 is a wasteful number, since it uses less digits than its factorization.

131311002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25782.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 131311002 is about 11459.1012736602. The cubic root of 131311002 is about 508.2768991786.

Adding to 131311002 its reverse (200113131), we get a palindrome (331424133).

The spelling of 131311002 in words is "one hundred thirty-one million, three hundred eleven thousand, two".