31263813301281 has 16 divisors (see below), whose sum is σ = 45673216743360. Its totient is φ = 18865024297920.

The previous prime is 31263813301261. The next prime is 31263813301309. The reversal of 31263813301281 is 18210331836213.

It is not a de Polignac number, because 31263813301281 - 2⁷ = 31263813301153 is a prime.

It is a super-2 number, since 2×31263813301281² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31263813301261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2068525810 + ... + 2068540923.

It is an arithmetic number, because the mean of its divisors is an integer number (2854576046460).

Almost surely, 2^{31263813301281} is an apocalyptic number.

It is an amenable number.

31263813301281 is a deficient number, since it is larger than the sum of its proper divisors (14409403442079).

31263813301281 is a wasteful number, since it uses less digits than its factorization.

31263813301281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4137066976.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 31263813301281 in words is "thirty-one trillion, two hundred sixty-three billion, eight hundred thirteen million, three hundred one thousand, two hundred eighty-one".