215101431503631 has 12 divisors (see below), whose sum is σ = 310702197811200. Its totient is φ = 143400894297120.

The previous prime is 215101431503531. The next prime is 215101431503657. The reversal of 215101431503631 is 136305134101512.

215101431503631 is a `hidden beast` number, since 2 + 1 + 5 + 1 + 0 + 1 + 4 + 3 + 15 + 0 + 3 + 631 = 666.

It is not a de Polignac number, because 215101431503631 - 2¹³ = 215101431495439 is a prime.

It is a super-2 number, since 2×215101431503631² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215101431503681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32419570 + ... + 38486768.

It is an arithmetic number, because the mean of its divisors is an integer number (25891849817600).

Almost surely, 2^{215101431503631} is an apocalyptic number.

215101431503631 is a deficient number, since it is larger than the sum of its proper divisors (95600766307569).

215101431503631 is a wasteful number, since it uses less digits than its factorization.

215101431503631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10006446 (or 10006443 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 215101431503631 in words is "two hundred fifteen trillion, one hundred one billion, four hundred thirty-one million, five hundred three thousand, six hundred thirty-one".