31212030202 has 16 divisors (see below), whose sum is σ = 47314708992. Its totient is φ = 15440677200.

The previous prime is 31212030169. The next prime is 31212030251. The reversal of 31212030202 is 20203021213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238903 + ... + 345685.

It is an arithmetic number, because the mean of its divisors is an integer number (2957169312).

Almost surely, 2^31212030202 is an apocalyptic number.

31212030202 is a deficient number, since it is larger than the sum of its proper divisors (16102678790).

31212030202 is a wasteful number, since it uses less digits than its factorization.

31212030202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108333.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31212030202 its reverse (20203021213), we get a palindrome (51415051415).

The spelling of 31212030202 in words is "thirty-one billion, two hundred twelve million, thirty thousand, two hundred two".