20312201120 has 48 divisors (see below), whose sum is σ = 50810380488. Its totient is φ = 7646945280.

The previous prime is 20312201111. The next prime is 20312201159. The reversal of 20312201120 is 2110221302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16038702736 + 4273498384 = 126644^2 + 65372^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20312201095 and 20312201104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3731141 + ... + 3736580.

Almost surely, 2^20312201120 is an apocalyptic number.

20312201120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20312201120 is an abundant number, since it is smaller than the sum of its proper divisors (30498179368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20312201120 is a wasteful number, since it uses less digits than its factorization.

20312201120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7467753 (or 7467745 counting only the distinct ones).

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

Adding to 20312201120 its reverse (2110221302), we get a palindrome (22422422422).

The spelling of 20312201120 in words is "twenty billion, three hundred twelve million, two hundred one thousand, one hundred twenty".