31232303011 has 16 divisors (see below), whose sum is σ = 39224248000. Its totient is φ = 24711269184.

The previous prime is 31232302957. The next prime is 31232303051. The reversal of 31232303011 is 11030323213.

It is a de Polignac number, because none of the positive numbers 2^k-31232303011 is a prime.

It is a super-2 number, since 2×31232303011² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31232303011.

It is not an unprimeable number, because it can be changed into a prime (31232303051) 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, 3497706 + ... + 3506623.

It is an arithmetic number, because the mean of its divisors is an integer number (2451515500).

Almost surely, 2^31232303011 is an apocalyptic number.

31232303011 is a deficient number, since it is larger than the sum of its proper divisors (7991944989).

31232303011 is an equidigital number, since it uses as much as digits as its factorization.

31232303011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7004363 (or 7004349 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31232303011 its reverse (11030323213), we get a palindrome (42262626224).

The spelling of 31232303011 in words is "thirty-one billion, two hundred thirty-two million, three hundred three thousand, eleven".