231315220153 has 4 divisors (see below), whose sum is σ = 231329687040. Its totient is φ = 231300753268.

The previous prime is 231315220151. The next prime is 231315220189. The reversal of 231315220153 is 351022513132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231315220153 - 2¹ = 231315220151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231315220151) 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 3 ways as a sum of consecutive naturals, for example, 7209433 + ... + 7241446.

It is an arithmetic number, because the mean of its divisors is an integer number (57832421760).

Almost surely, 2^231315220153 is an apocalyptic number.

It is an amenable number.

231315220153 is a deficient number, since it is larger than the sum of its proper divisors (14466887).

231315220153 is a wasteful number, since it uses less digits than its factorization.

231315220153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14466886.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 231315220153 its reverse (351022513132), we get a palindrome (582337733285).

The spelling of 231315220153 in words is "two hundred thirty-one billion, three hundred fifteen million, two hundred twenty thousand, one hundred fifty-three".