31023013011 has 8 divisors (see below), whose sum is σ = 41689718784. Its totient is φ = 20519157960.

The previous prime is 31023012997. The next prime is 31023013027. The reversal of 31023013011 is 11031032013.

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

It is not a de Polignac number, because 31023013011 - 2⁶ = 31023012947 is a prime.

It is a super-2 number, since 2×31023013011² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31023013051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40712235 + ... + 40712996.

It is an arithmetic number, because the mean of its divisors is an integer number (5211214848).

Almost surely, 2^31023013011 is an apocalyptic number.

31023013011 is a deficient number, since it is larger than the sum of its proper divisors (10666705773).

31023013011 is a wasteful number, since it uses less digits than its factorization.

31023013011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81425361.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 31023013011 its reverse (11031032013), we get a palindrome (42054045024).

The spelling of 31023013011 in words is "thirty-one billion, twenty-three million, thirteen thousand, eleven".