213144650131 has 24 divisors (see below), whose sum is σ = 248806026000. Its totient is φ = 182061057024.

The previous prime is 213144650113. The next prime is 213144650143. The reversal of 213144650131 is 131056441312.

It is not a de Polignac number, because 213144650131 - 2¹⁵ = 213144617363 is a prime.

It is a super-2 number, since 2×213144650131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213144650093 and 213144650102.

It is not an unprimeable number, because it can be changed into a prime (213144050131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20710635 + ... + 20720923.

It is an arithmetic number, because the mean of its divisors is an integer number (10366917750).

Almost surely, 2^213144650131 is an apocalyptic number.

213144650131 is a deficient number, since it is larger than the sum of its proper divisors (35661375869).

213144650131 is a wasteful number, since it uses less digits than its factorization.

213144650131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11731 (or 11724 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 213144650131 in words is "two hundred thirteen billion, one hundred forty-four million, six hundred fifty thousand, one hundred thirty-one".