31420520506441 has 8 divisors (see below), whose sum is σ = 35006227876224. Its totient is φ = 27956362539120.

The previous prime is 31420520506409. The next prime is 31420520506481. The reversal of 31420520506441 is 14460502502413.

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 31420520506441 - 2⁵ = 31420520506409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31420520506441.

It is not an unprimeable number, because it can be changed into a prime (31420520506481) 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, 30387350070 + ... + 30387351103.

It is an arithmetic number, because the mean of its divisors is an integer number (4375778484528).

Almost surely, 2^{31420520506441} is an apocalyptic number.

It is an amenable number.

31420520506441 is a deficient number, since it is larger than the sum of its proper divisors (3585707369783).

31420520506441 is a wasteful number, since it uses less digits than its factorization.

31420520506441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60774701231.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 31420520506441 in words is "thirty-one trillion, four hundred twenty billion, five hundred twenty million, five hundred six thousand, four hundred forty-one".