131202030312 has 80 divisors (see below), whose sum is σ = 367541093700. Its totient is φ = 43727592960.

The previous prime is 131202030307. The next prime is 131202030317. The reversal of 131202030312 is 213030202131.

131202030312 is a `hidden beast` number, since 131 + 20 + 203 + 0 + 312 = 666.

It is an interprime number because it is at equal distance from previous prime (131202030307) and next prime (131202030317).

It can be written as a sum of positive squares in 2 ways, for example, as 131198981796 + 3048516 = 362214^2 + 1746^2 .

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

It is not an unprimeable number, because it can be changed into a prime (131202030317) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6852112 + ... + 6871232.

Almost surely, 2^131202030312 is an apocalyptic number.

131202030312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131202030312 is an abundant number, since it is smaller than the sum of its proper divisors (236339063388).

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

131202030312 is a wasteful number, since it uses less digits than its factorization.

131202030312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29728 (or 29715 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 131202030312 its reverse (213030202131), we get a palindrome (344232232443).

The spelling of 131202030312 in words is "one hundred thirty-one billion, two hundred two million, thirty thousand, three hundred twelve".