31210042002 has 8 divisors (see below), whose sum is σ = 62420084016. Its totient is φ = 10403347332.

The previous prime is 31210041983. The next prime is 31210042043. The reversal of 31210042002 is 20024001213.

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

31210042002 is an admirable number.

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, 2600836828 + ... + 2600836839.

It is an arithmetic number, because the mean of its divisors is an integer number (7802510502).

Almost surely, 2^31210042002 is an apocalyptic number.

31210042002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31210042002 is a wasteful number, since it uses less digits than its factorization.

31210042002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5201673672.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 31210042002 its reverse (20024001213), we get a palindrome (51234043215).

The spelling of 31210042002 in words is "thirty-one billion, two hundred ten million, forty-two thousand, two".