31231201001002 has 16 divisors (see below), whose sum is σ = 47157345474624. Its totient is φ = 15512087160000.

The previous prime is 31231201000949. The next prime is 31231201001053. The reversal of 31231201001002 is 20010010213213.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77924802 + ... + 78324562.

It is an arithmetic number, because the mean of its divisors is an integer number (2947334092164).

Almost surely, 2^{31231201001002} is an apocalyptic number.

31231201001002 is a deficient number, since it is larger than the sum of its proper divisors (15926144473622).

31231201001002 is a wasteful number, since it uses less digits than its factorization.

31231201001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658605.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 31231201001002 its reverse (20010010213213), we get a palindrome (51241211214215).

The spelling of 31231201001002 in words is "thirty-one trillion, two hundred thirty-one billion, two hundred one million, one thousand, two".