31203213002 has 64 divisors (see below), whose sum is σ = 52255301280. Its totient is φ = 13884825600.

The previous prime is 31203212927. The next prime is 31203213017. The reversal of 31203213002 is 20031230213.

It can be written as a sum of positive squares in 16 ways, for example, as 8888529841 + 22314683161 = 94279^2 + 149381^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20955074 + ... + 20956562.

Almost surely, 2^31203213002 is an apocalyptic number.

31203213002 is a deficient number, since it is larger than the sum of its proper divisors (21052088278).

31203213002 is a wasteful number, since it uses less digits than its factorization.

31203213002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31203213002 its reverse (20031230213), we get a palindrome (51234443215).

The spelling of 31203213002 in words is "thirty-one billion, two hundred three million, two hundred thirteen thousand, two".