32131312311 has 16 divisors (see below), whose sum is σ = 49194053888. Its totient is φ = 18273729600.

The previous prime is 32131312261. The next prime is 32131312333. The reversal of 32131312311 is 11321313123.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-32131312311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32131312351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3621310 + ... + 3630171.

It is an arithmetic number, because the mean of its divisors is an integer number (3074628368).

Almost surely, 2^32131312311 is an apocalyptic number.

32131312311 is a deficient number, since it is larger than the sum of its proper divisors (17062741577).

32131312311 is a wasteful number, since it uses less digits than its factorization.

32131312311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7251702.

The product of its digits is 324, while the sum is 21.

Adding to 32131312311 its reverse (11321313123), we get a palindrome (43452625434).

It can be divided in two parts, 321313123 and 11, that multiplied together give a palindrome (3534444353).

The spelling of 32131312311 in words is "thirty-two billion, one hundred thirty-one million, three hundred twelve thousand, three hundred eleven".