131001312402 has 48 divisors (see below), whose sum is σ = 290266778880. Its totient is φ = 42680291136.

The previous prime is 131001312373. The next prime is 131001312437. The reversal of 131001312402 is 204213100131.

131001312402 is a `hidden beast` number, since 1 + 310 + 0 + 1 + 312 + 40 + 2 = 666.

It is a super-2 number, since 2×131001312402² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 524374 + ... + 732782.

It is an arithmetic number, because the mean of its divisors is an integer number (6047224560).

Almost surely, 2^131001312402 is an apocalyptic number.

131001312402 is an abundant number, since it is smaller than the sum of its proper divisors (159265466478).

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

131001312402 is a wasteful number, since it uses less digits than its factorization.

131001312402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209207 (or 209204 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 131001312402 its reverse (204213100131), we get a palindrome (335214412533).

The spelling of 131001312402 in words is "one hundred thirty-one billion, one million, three hundred twelve thousand, four hundred two".