31322161353 has 8 divisors (see below), whose sum is σ = 47729007808. Its totient is φ = 17898377904.

The previous prime is 31322161349. The next prime is 31322161373. The reversal of 31322161353 is 35316122313.

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

It is not a de Polignac number, because 31322161353 - 2² = 31322161349 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 31322161353.

It is not an unprimeable number, because it can be changed into a prime (31322161303) 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, 745765726 + ... + 745765767.

It is an arithmetic number, because the mean of its divisors is an integer number (5966125976).

Almost surely, 2^31322161353 is an apocalyptic number.

It is an amenable number.

31322161353 is a deficient number, since it is larger than the sum of its proper divisors (16406846455).

31322161353 is a wasteful number, since it uses less digits than its factorization.

31322161353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491531503.

The product of its digits is 9720, while the sum is 30.

Adding to 31322161353 its reverse (35316122313), we get a palindrome (66638283666).

The spelling of 31322161353 in words is "thirty-one billion, three hundred twenty-two million, one hundred sixty-one thousand, three hundred fifty-three".