31625221152341 has 4 divisors (see below), whose sum is σ = 31629128885772. Its totient is φ = 31621313418912.

The previous prime is 31625221152331. The next prime is 31625221152359. The reversal of 31625221152341 is 14325112252613.

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 21487072222225 + 10138148930116 = 4635415^2 + 3184046^2 .

It is a cyclic number.

It is not a de Polignac number, because 31625221152341 - 2¹⁰ = 31625221151317 is a prime.

It is a super-2 number, since 2×31625221152341² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31625221152295 and 31625221152304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31625221152331) 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, 1953854576 + ... + 1953870761.

It is an arithmetic number, because the mean of its divisors is an integer number (7907282221443).

Almost surely, 2^{31625221152341} is an apocalyptic number.

It is an amenable number.

31625221152341 is a deficient number, since it is larger than the sum of its proper divisors (3907733431).

31625221152341 is an equidigital number, since it uses as much as digits as its factorization.

31625221152341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3907733430.

The product of its digits is 86400, while the sum is 38.

The spelling of 31625221152341 in words is "thirty-one trillion, six hundred twenty-five billion, two hundred twenty-one million, one hundred fifty-two thousand, three hundred forty-one".