131211310331004 has 48 divisors (see below), whose sum is σ = 325622792936448. Its totient is φ = 40979739218688.

The previous prime is 131211310330829. The next prime is 131211310331011. The reversal of 131211310331004 is 400133013112131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1442090602 + ... + 1442181585.

It is an arithmetic number, because the mean of its divisors is an integer number (6783808186176).

Almost surely, 2^{131211310331004} is an apocalyptic number.

It is an amenable number.

131211310331004 is an abundant number, since it is smaller than the sum of its proper divisors (194411482605444).

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

131211310331004 is a wasteful number, since it uses less digits than its factorization.

131211310331004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2884272434 (or 2884272432 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 131211310331004 its reverse (400133013112131), we get a palindrome (531344323443135).

The spelling of 131211310331004 in words is "one hundred thirty-one trillion, two hundred eleven billion, three hundred ten million, three hundred thirty-one thousand, four".