20202031112 has 16 divisors (see below), whose sum is σ = 37880842860. Its totient is φ = 10100473024.

The previous prime is 20202031093. The next prime is 20202031121. The reversal of 20202031112 is 21113020202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19809436516 + 392594596 = 140746^2 + 19814^2 .

It is a super-2 number, since 2×20202031112² (a number of 21 digits) contains 22 as substring.

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, 121538 + ... + 234894.

Almost surely, 2^20202031112 is an apocalyptic number.

It is an amenable number.

20202031112 is a deficient number, since it is larger than the sum of its proper divisors (17678811748).

20202031112 is a wasteful number, since it uses less digits than its factorization.

20202031112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135640 (or 135636 counting only the distinct ones).

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

Adding to 20202031112 its reverse (21113020202), we get a palindrome (41315051314).

The spelling of 20202031112 in words is "twenty billion, two hundred two million, thirty-one thousand, one hundred twelve".