131231002132 has 24 divisors (see below), whose sum is σ = 236134067400. Its totient is φ = 63786842496.

The previous prime is 131231002129. The next prime is 131231002151. The reversal of 131231002132 is 231200132131.

It can be written as a sum of positive squares in 4 ways, for example, as 84283379856 + 46947622276 = 290316^2 + 216674^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2816407 + ... + 2862622.

It is an arithmetic number, because the mean of its divisors is an integer number (9838919475).

Almost surely, 2^131231002132 is an apocalyptic number.

It is an amenable number.

131231002132 is a deficient number, since it is larger than the sum of its proper divisors (104903065268).

131231002132 is a wasteful number, since it uses less digits than its factorization.

131231002132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5679195 (or 5679193 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131231002132 its reverse (231200132131), we get a palindrome (362431134263).

The spelling of 131231002132 in words is "one hundred thirty-one billion, two hundred thirty-one million, two thousand, one hundred thirty-two".