31132131110011 has 4 divisors (see below), whose sum is σ = 31147295325952. Its totient is φ = 31116966894072.

The previous prime is 31132131109997. The next prime is 31132131110039. The reversal of 31132131110011 is 11001113123113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31132131110011 - 2¹¹ = 31132131107963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31132131110071) 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 3 ways as a sum of consecutive naturals, for example, 7582104891 + ... + 7582108996.

It is an arithmetic number, because the mean of its divisors is an integer number (7786823831488).

Almost surely, 2^{31132131110011} is an apocalyptic number.

31132131110011 is a deficient number, since it is larger than the sum of its proper divisors (15164215941).

31132131110011 is a wasteful number, since it uses less digits than its factorization.

31132131110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15164215940.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 31132131110011 its reverse (11001113123113), we get a palindrome (42133244233124).

It can be divided in two parts, 3113213 and 1110011, that added together give a palindrome (4223224).

The spelling of 31132131110011 in words is "thirty-one trillion, one hundred thirty-two billion, one hundred thirty-one million, one hundred ten thousand, eleven".