31123020112202 has 8 divisors (see below), whose sum is σ = 46921507479396. Its totient is φ = 15482517619072.

The previous prime is 31123020112189. The next prime is 31123020112213. The reversal of 31123020112202 is 20221102032113.

It can be written as a sum of positive squares in 2 ways, for example, as 29881736683561 + 1241283428641 = 5466419^2 + 1114129^2 .

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

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, 39496218023 + ... + 39496218810.

Almost surely, 2^{31123020112202} is an apocalyptic number.

31123020112202 is a deficient number, since it is larger than the sum of its proper divisors (15798487367194).

31123020112202 is a wasteful number, since it uses less digits than its factorization.

31123020112202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78992437032.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31123020112202 its reverse (20221102032113), we get a palindrome (51344122144315).

The spelling of 31123020112202 in words is "thirty-one trillion, one hundred twenty-three billion, twenty million, one hundred twelve thousand, two hundred two".