31011013323 has 32 divisors (see below), whose sum is σ = 47572200000. Its totient is φ = 19941901056.

The previous prime is 31011013303. The next prime is 31011013333. The reversal of 31011013323 is 32331011013.

It is a happy number.

It is not a de Polignac number, because 31011013323 - 2⁸ = 31011013067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31011013296 and 31011013305.

It is not an unprimeable number, because it can be changed into a prime (31011013303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 818503 + ... + 855551.

It is an arithmetic number, because the mean of its divisors is an integer number (1486631250).

Almost surely, 2^31011013323 is an apocalyptic number.

31011013323 is a deficient number, since it is larger than the sum of its proper divisors (16561186677).

31011013323 is a wasteful number, since it uses less digits than its factorization.

31011013323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38156 (or 38150 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 31011013323 its reverse (32331011013), we get a palindrome (63342024336).

The spelling of 31011013323 in words is "thirty-one billion, eleven million, thirteen thousand, three hundred twenty-three".