31352381323 has 4 divisors (see below), whose sum is σ = 31397107248. Its totient is φ = 31307655400.

The previous prime is 31352381311. The next prime is 31352381329. The reversal of 31352381323 is 32318325313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31352381323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31352381329) 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, 22361911 + ... + 22363312.

It is an arithmetic number, because the mean of its divisors is an integer number (7849276812).

Almost surely, 2^31352381323 is an apocalyptic number.

31352381323 is a deficient number, since it is larger than the sum of its proper divisors (44725925).

31352381323 is an equidigital number, since it uses as much as digits as its factorization.

31352381323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44725924.

The product of its digits is 38880, while the sum is 34.

The spelling of 31352381323 in words is "thirty-one billion, three hundred fifty-two million, three hundred eighty-one thousand, three hundred twenty-three".