31542353254261 has 2 divisors, whose sum is σ = 31542353254262. Its totient is φ = 31542353254260.

The previous prime is 31542353254219. The next prime is 31542353254303. The reversal of 31542353254261 is 16245235324513.

It is a balanced prime because it is at equal distance from previous prime (31542353254219) and next prime (31542353254303).

It can be written as a sum of positive squares in only one way, i.e., 30571499722500 + 970853531761 = 5529150^2 + 985319^2 .

It is a cyclic number.

It is not a de Polignac number, because 31542353254261 - 2¹⁷ = 31542353123189 is a prime.

It is a super-2 number, since 2×31542353254261² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31542353254201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15771176627130 + 15771176627131.

It is an arithmetic number, because the mean of its divisors is an integer number (15771176627131).

Almost surely, 2^{31542353254261} is an apocalyptic number.

It is an amenable number.

31542353254261 is a deficient number, since it is larger than the sum of its proper divisors (1).

31542353254261 is an equidigital number, since it uses as much as digits as its factorization.

31542353254261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592000, while the sum is 46.

Adding to 31542353254261 its reverse (16245235324513), we get a palindrome (47787588578774).

The spelling of 31542353254261 in words is "thirty-one trillion, five hundred forty-two billion, three hundred fifty-three million, two hundred fifty-four thousand, two hundred sixty-one".