331131230022011 has 4 divisors (see below), whose sum is σ = 345528240022992. Its totient is φ = 316734220021032.

The previous prime is 331131230021957. The next prime is 331131230022029. The reversal of 331131230022011 is 110220032131133.

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 331131230022011 - 2³⁸ = 330856352115067 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 14397010000957 = 331131230022011 / (3 + 3 + 1 + 1 + 3 + 1 + 2 + 3 + 0 + 0 + 2 + 2 + 0 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331131230022311) 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, 7198505000456 + ... + 7198505000501.

It is an arithmetic number, because the mean of its divisors is an integer number (86382060005748).

Almost surely, 2^{331131230022011} is an apocalyptic number.

331131230022011 is a deficient number, since it is larger than the sum of its proper divisors (14397010000981).

331131230022011 is a wasteful number, since it uses less digits than its factorization.

331131230022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14397010000980.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 331131230022011 its reverse (110220032131133), we get a palindrome (441351262153144).

The spelling of 331131230022011 in words is "three hundred thirty-one trillion, one hundred thirty-one billion, two hundred thirty million, twenty-two thousand, eleven".