31323113011 has 8 divisors (see below), whose sum is σ = 32028565824. Its totient is φ = 30619285440.

The previous prime is 31323112963. The next prime is 31323113021. The reversal of 31323113011 is 11031132313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31323113011 - 2¹⁷ = 31322981939 is a prime.

It is a super-2 number, since 2×31323113011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31323113011.

It is not an unprimeable number, because it can be changed into a prime (31323113021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367290 + ... + 444463.

It is an arithmetic number, because the mean of its divisors is an integer number (4003570728).

Almost surely, 2^31323113011 is an apocalyptic number.

31323113011 is a deficient number, since it is larger than the sum of its proper divisors (705452813).

31323113011 is an equidigital number, since it uses as much as digits as its factorization.

31323113011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812621.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 31323113011 its reverse (11031132313), we get a palindrome (42354245324).

The spelling of 31323113011 in words is "thirty-one billion, three hundred twenty-three million, one hundred thirteen thousand, eleven".