131430403402 has 16 divisors (see below), whose sum is σ = 199147620672. Its totient is φ = 65048427360.

The previous prime is 131430403399. The next prime is 131430403421. The reversal of 131430403402 is 204304034131.

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, 330033 + ... + 609739.

It is an arithmetic number, because the mean of its divisors is an integer number (12446726292).

Almost surely, 2^131430403402 is an apocalyptic number.

131430403402 is a deficient number, since it is larger than the sum of its proper divisors (67717217270).

131430403402 is a wasteful number, since it uses less digits than its factorization.

131430403402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282093.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 131430403402 its reverse (204304034131), we get a palindrome (335734437533).

The spelling of 131430403402 in words is "one hundred thirty-one billion, four hundred thirty million, four hundred three thousand, four hundred two".