2320991331011 has 4 divisors (see below), whose sum is σ = 2323853220024. Its totient is φ = 2318129442000.

The previous prime is 2320991330981. The next prime is 2320991331013. The reversal of 2320991331011 is 1101331990232.

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-2320991331011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2320991331013) 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, 1430943290 + ... + 1430944911.

It is an arithmetic number, because the mean of its divisors is an integer number (580963305006).

Almost surely, 2^{2320991331011} is an apocalyptic number.

2320991331011 is a deficient number, since it is larger than the sum of its proper divisors (2861889013).

2320991331011 is an equidigital number, since it uses as much as digits as its factorization.

2320991331011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861889012.

The product of its (nonzero) digits is 8748, while the sum is 35.

The spelling of 2320991331011 in words is "two trillion, three hundred twenty billion, nine hundred ninety-one million, three hundred thirty-one thousand, eleven".