31941253441 has 8 divisors (see below), whose sum is σ = 32390150760. Its totient is φ = 31492662912.

The previous prime is 31941253433. The next prime is 31941253447. The reversal of 31941253441 is 14435214913.

It can be written as a sum of positive squares in 4 ways, for example, as 18088905025 + 13852348416 = 134495^2 + 117696^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31941253441 - 2³ = 31941253433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31941253441.

It is not an unprimeable number, because it can be changed into a prime (31941253447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137151 + ... + 287563.

It is an arithmetic number, because the mean of its divisors is an integer number (4048768845).

Almost surely, 2^31941253441 is an apocalyptic number.

It is an amenable number.

31941253441 is a deficient number, since it is larger than the sum of its proper divisors (448897319).

31941253441 is a wasteful number, since it uses less digits than its factorization.

31941253441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153395.

The product of its digits is 51840, while the sum is 37.

The spelling of 31941253441 in words is "thirty-one billion, nine hundred forty-one million, two hundred fifty-three thousand, four hundred forty-one".