31320232301311 has 4 divisors (see below), whose sum is σ = 31320429925624. Its totient is φ = 31320034677000.

The previous prime is 31320232301287. The next prime is 31320232301327. The reversal of 31320232301311 is 11310323202313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31320232301311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31320232301381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98574240 + ... + 98891461.

It is an arithmetic number, because the mean of its divisors is an integer number (7830107481406).

Almost surely, 2^{31320232301311} is an apocalyptic number.

31320232301311 is a deficient number, since it is larger than the sum of its proper divisors (197624313).

31320232301311 is a wasteful number, since it uses less digits than its factorization.

31320232301311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197624312.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31320232301311 its reverse (11310323202313), we get a palindrome (42630555503624).

The spelling of 31320232301311 in words is "thirty-one trillion, three hundred twenty billion, two hundred thirty-two million, three hundred one thousand, three hundred eleven".