131140131402 has 16 divisors (see below), whose sum is σ = 299748871872. Its totient is φ = 37468608960.

The previous prime is 131140131391. The next prime is 131140131407. The reversal of 131140131402 is 204131041131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (131140131407) 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, 1561191999 + ... + 1561192082.

It is an arithmetic number, because the mean of its divisors is an integer number (18734304492).

Almost surely, 2^131140131402 is an apocalyptic number.

131140131402 is an abundant number, since it is smaller than the sum of its proper divisors (168608740470).

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

131140131402 is a wasteful number, since it uses less digits than its factorization.

131140131402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122384093.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 131140131402 its reverse (204131041131), we get a palindrome (335271172533).

The spelling of 131140131402 in words is "one hundred thirty-one billion, one hundred forty million, one hundred thirty-one thousand, four hundred two".