31323593153 has 4 divisors (see below), whose sum is σ = 31328698368. Its totient is φ = 31318487940.

The previous prime is 31323593051. The next prime is 31323593183. The reversal of 31323593153 is 35139532313.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35139532313 = 138559 ⋅253607.

It is a cyclic number.

It is not a de Polignac number, because 31323593153 - 2¹⁸ = 31323331009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31323593183) 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, 2543393 + ... + 2555678.

It is an arithmetic number, because the mean of its divisors is an integer number (7832174592).

Almost surely, 2^31323593153 is an apocalyptic number.

It is an amenable number.

31323593153 is a deficient number, since it is larger than the sum of its proper divisors (5105215).

31323593153 is an equidigital number, since it uses as much as digits as its factorization.

31323593153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105214.

The product of its digits is 109350, while the sum is 38.

The spelling of 31323593153 in words is "thirty-one billion, three hundred twenty-three million, five hundred ninety-three thousand, one hundred fifty-three".