136213312631 has 16 divisors (see below), whose sum is σ = 150784063488. Its totient is φ = 122009378400.

The previous prime is 136213312619. The next prime is 136213312673.

136213312631 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 136213312631 - 2¹⁰ = 136213311607 is a prime.

It is a super-2 number, since 2×136213312631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136213312691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1205690 + ... + 1313816.

It is an arithmetic number, because the mean of its divisors is an integer number (9424003968).

Almost surely, 2^136213312631 is an apocalyptic number.

136213312631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

136213312631 is a deficient number, since it is larger than the sum of its proper divisors (14570750857).

136213312631 is a wasteful number, since it uses less digits than its factorization.

136213312631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109822.

The product of its digits is 11664, while the sum is 32.

It can be divided in two parts, 136213 and 312631, that added together give a palindrome (448844).

The spelling of 136213312631 in words is "one hundred thirty-six billion, two hundred thirteen million, three hundred twelve thousand, six hundred thirty-one".