31012012202 has 8 divisors (see below), whose sum is σ = 46997585796. Its totient is φ = 15346150272.

The previous prime is 31012012201. The next prime is 31012012219. The reversal of 31012012202 is 20221021013.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30751480321 + 260531881 = 175361^2 + 16141^2 .

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 (31012012201) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 79927673 + ... + 79928060.

Almost surely, 2^31012012202 is an apocalyptic number.

31012012202 is a deficient number, since it is larger than the sum of its proper divisors (15985573594).

31012012202 is a wasteful number, since it uses less digits than its factorization.

31012012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159855832.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 31012012202 its reverse (20221021013), we get a palindrome (51233033215).

The spelling of 31012012202 in words is "thirty-one billion, twelve million, twelve thousand, two hundred two".