131245215004 has 6 divisors (see below), whose sum is σ = 229679126264. Its totient is φ = 65622607500.

The previous prime is 131245214987. The next prime is 131245215019. The reversal of 131245215004 is 400512542131.

It is a super-2 number, since 2×131245215004² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16405651872 + ... + 16405651879.

Almost surely, 2^131245215004 is an apocalyptic number.

It is an amenable number.

131245215004 is a deficient number, since it is larger than the sum of its proper divisors (98433911260).

131245215004 is a wasteful number, since it uses less digits than its factorization.

131245215004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32811303755 (or 32811303753 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 131245215004 its reverse (400512542131), we get a palindrome (531757757135).

The spelling of 131245215004 in words is "one hundred thirty-one billion, two hundred forty-five million, two hundred fifteen thousand, four".