131010402 has 16 divisors (see below), whose sum is σ = 270473472. Its totient is φ = 42261360.

The previous prime is 131010389. The next prime is 131010409. The reversal of 131010402 is 204010131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (131010409) 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, 351993 + ... + 352364.

It is an arithmetic number, because the mean of its divisors is an integer number (16904592).

Almost surely, 2^131010402 is an apocalyptic number.

131010402 is an abundant number, since it is smaller than the sum of its proper divisors (139463070).

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

131010402 is a wasteful number, since it uses less digits than its factorization.

131010402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704393.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 131010402 is about 11445.9775467192. The cubic root of 131010402 is about 507.8887499993. Note that the first 3 decimals are identical.

Adding to 131010402 its reverse (204010131), we get a palindrome (335020533).

The spelling of 131010402 in words is "one hundred thirty-one million, ten thousand, four hundred two".