31143040321202 has 8 divisors (see below), whose sum is σ = 49462475804316. Its totient is φ = 14655548386432.

The previous prime is 31143040321199. The next prime is 31143040321231. The reversal of 31143040321202 is 20212304034113.

It can be written as a sum of positive squares in 2 ways, for example, as 31124560365721 + 18479955481 = 5578939^2 + 135941^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457985887043 + ... + 457985887110.

Almost surely, 2^{31143040321202} is an apocalyptic number.

31143040321202 is a deficient number, since it is larger than the sum of its proper divisors (18319435483114).

31143040321202 is a wasteful number, since it uses less digits than its factorization.

31143040321202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915971774172.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 31143040321202 its reverse (20212304034113), we get a palindrome (51355344355315).

The spelling of 31143040321202 in words is "thirty-one trillion, one hundred forty-three billion, forty million, three hundred twenty-one thousand, two hundred two".