2731755440231 has 2 divisors, whose sum is σ = 2731755440232. Its totient is φ = 2731755440230.

The previous prime is 2731755440207. The next prime is 2731755440237. The reversal of 2731755440231 is 1320445571372.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2731755440231 - 2²⁶ = 2731688331367 is a prime.

It is a super-2 number, since 2×2731755440231² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2731755440237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365877720115 + 1365877720116.

It is an arithmetic number, because the mean of its divisors is an integer number (1365877720116).

Almost surely, 2^{2731755440231} is an apocalyptic number.

2731755440231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2731755440231 is an equidigital number, since it uses as much as digits as its factorization.

2731755440231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 2731755440231 in words is "two trillion, seven hundred thirty-one billion, seven hundred fifty-five million, four hundred forty thousand, two hundred thirty-one".