31056266543 has 2 divisors, whose sum is σ = 31056266544. Its totient is φ = 31056266542.

The previous prime is 31056266537. The next prime is 31056266561. The reversal of 31056266543 is 34566265013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31056266543 - 2²² = 31052072239 is a prime.

It is a super-2 number, since 2×31056266543² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31056266543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31056266533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15528133271 + 15528133272.

It is an arithmetic number, because the mean of its divisors is an integer number (15528133272).

Almost surely, 2^31056266543 is an apocalyptic number.

31056266543 is a deficient number, since it is larger than the sum of its proper divisors (1).

31056266543 is an equidigital number, since it uses as much as digits as its factorization.

31056266543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 31056266543 in words is "thirty-one billion, fifty-six million, two hundred sixty-six thousand, five hundred forty-three".