311130431052241 has 4 divisors (see below), whose sum is σ = 311138914073652. Its totient is φ = 311121948030832.

The previous prime is 311130431052239. The next prime is 311130431052251. The reversal of 311130431052241 is 142250134031113.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 183335093336641 + 127795337715600 = 13540129^2 + 11304660^2 .

It is a cyclic number.

It is not a de Polignac number, because 311130431052241 - 2¹ = 311130431052239 is a prime.

It is a super-2 number, since 2×311130431052241² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311130431052251) 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, 4241455690 + ... + 4241529043.

It is an arithmetic number, because the mean of its divisors is an integer number (77784728518413).

Almost surely, 2^{311130431052241} is an apocalyptic number.

It is an amenable number.

311130431052241 is a deficient number, since it is larger than the sum of its proper divisors (8483021411).

311130431052241 is an equidigital number, since it uses as much as digits as its factorization.

311130431052241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8483021410.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 311130431052241 its reverse (142250134031113), we get a palindrome (453380565083354).

The spelling of 311130431052241 in words is "three hundred eleven trillion, one hundred thirty billion, four hundred thirty-one million, fifty-two thousand, two hundred forty-one".