31341375474481 has 4 divisors (see below), whose sum is σ = 32188439676532. Its totient is φ = 30494311272432.

The previous prime is 31341375474469. The next prime is 31341375474517. The reversal of 31341375474481 is 18447457314313.

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 24978954431025 + 6362421043456 = 4997895^2 + 2522384^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31341375474481 is a prime.

It is a super-2 number, since 2×31341375474481² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31341375475481) 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, 423532100970 + ... + 423532101043.

It is an arithmetic number, because the mean of its divisors is an integer number (8047109919133).

Almost surely, 2^{31341375474481} is an apocalyptic number.

It is an amenable number.

31341375474481 is a deficient number, since it is larger than the sum of its proper divisors (847064202051).

31341375474481 is an equidigital number, since it uses as much as digits as its factorization.

31341375474481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847064202050.

The product of its digits is 13547520, while the sum is 55.

The spelling of 31341375474481 in words is "thirty-one trillion, three hundred forty-one billion, three hundred seventy-five million, four hundred seventy-four thousand, four hundred eighty-one".