131213110302 has 40 divisors (see below), whose sum is σ = 295408072872. Its totient is φ = 43530404400.

The previous prime is 131213110289. The next prime is 131213110307. The reversal of 131213110302 is 203011312131.

131213110302 is a `hidden beast` number, since 1 + 31 + 21 + 311 + 0 + 302 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131213110307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1885149 + ... + 1953512.

Almost surely, 2^131213110302 is an apocalyptic number.

131213110302 is an abundant number, since it is smaller than the sum of its proper divisors (164194962570).

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

131213110302 is a wasteful number, since it uses less digits than its factorization.

131213110302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838886 (or 3838877 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 131213110302 its reverse (203011312131), we get a palindrome (334224422433).

The spelling of 131213110302 in words is "one hundred thirty-one billion, two hundred thirteen million, one hundred ten thousand, three hundred two".