31023011011 has 16 divisors (see below), whose sum is σ = 32103445248. Its totient is φ = 29965456800.

The previous prime is 31023010987. The next prime is 31023011053. The reversal of 31023011011 is 11011032013.

It is not a de Polignac number, because 31023011011 - 2¹⁷ = 31022879939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31023010982 and 31023011000.

It is not an unprimeable number, because it can be changed into a prime (31023011611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 827176 + ... + 863866.

It is an arithmetic number, because the mean of its divisors is an integer number (2006465328).

Almost surely, 2^31023011011 is an apocalyptic number.

31023011011 is a deficient number, since it is larger than the sum of its proper divisors (1080434237).

31023011011 is a wasteful number, since it uses less digits than its factorization.

31023011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37002.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 31023011011 its reverse (11011032013), we get a palindrome (42034043024).

The spelling of 31023011011 in words is "thirty-one billion, twenty-three million, eleven thousand, eleven".