31032311661002 has 8 divisors (see below), whose sum is σ = 49286612638116. Its totient is φ = 14603440781632.

The previous prime is 31032311660989. The next prime is 31032311661007. The reversal of 31032311661002 is 20016611323013.

It can be written as a sum of positive squares in 2 ways, for example, as 25715233698361 + 5317077962641 = 5071019^2 + 2305879^2 .

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

It is not an unprimeable number, because it can be changed into a prime (31032311661007) 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, 456357524393 + ... + 456357524460.

Almost surely, 2^{31032311661002} is an apocalyptic number.

31032311661002 is a deficient number, since it is larger than the sum of its proper divisors (18254300977114).

31032311661002 is a wasteful number, since it uses less digits than its factorization.

31032311661002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912715048872.

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 31032311661002 its reverse (20016611323013), we get a palindrome (51048922984015).

The spelling of 31032311661002 in words is "thirty-one trillion, thirty-two billion, three hundred eleven million, six hundred sixty-one thousand, two".