53215324131 has 4 divisors (see below), whose sum is σ = 70953765512. Its totient is φ = 35476882752.

The previous prime is 53215324121. The next prime is 53215324277. The reversal of 53215324131 is 13142351235.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 53215324131 - 2¹⁸ = 53215061987 is a prime.

It is a super-2 number, since 2×53215324131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53215324121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8869220686 + ... + 8869220691.

It is an arithmetic number, because the mean of its divisors is an integer number (17738441378).

Almost surely, 2^53215324131 is an apocalyptic number.

53215324131 is a deficient number, since it is larger than the sum of its proper divisors (17738441381).

53215324131 is a wasteful number, since it uses less digits than its factorization.

53215324131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17738441380.

The product of its digits is 10800, while the sum is 30.

Adding to 53215324131 its reverse (13142351235), we get a palindrome (66357675366).

The spelling of 53215324131 in words is "fifty-three billion, two hundred fifteen million, three hundred twenty-four thousand, one hundred thirty-one".