51231014213 has 16 divisors (see below), whose sum is σ = 54280800000. Its totient is φ = 48272828352.

The previous prime is 51231014179. The next prime is 51231014227. The reversal of 51231014213 is 31241013215.

It is not a de Polignac number, because 51231014213 - 2⁸ = 51231013957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51231014293) 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, 421838 + ... + 529536.

It is an arithmetic number, because the mean of its divisors is an integer number (3392550000).

Almost surely, 2^51231014213 is an apocalyptic number.

It is an amenable number.

51231014213 is a deficient number, since it is larger than the sum of its proper divisors (3049785787).

51231014213 is a wasteful number, since it uses less digits than its factorization.

51231014213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108124.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 51231014213 its reverse (31241013215), we get a palindrome (82472027428).

The spelling of 51231014213 in words is "fifty-one billion, two hundred thirty-one million, fourteen thousand, two hundred thirteen".