20113253000 has 32 divisors (see below), whose sum is σ = 47065014360. Its totient is φ = 8045300800.

The previous prime is 20113252969. The next prime is 20113253057. The reversal of 20113253000 is 35231102.

It can be written as a sum of positive squares in 4 ways, for example, as 802815556 + 19310437444 = 28334^2 + 138962^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20113253000.

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, 10055627 + ... + 10057626.

Almost surely, 2^20113253000 is an apocalyptic number.

20113253000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20113253000 is an abundant number, since it is smaller than the sum of its proper divisors (26951761360).

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

20113253000 is a wasteful number, since it uses less digits than its factorization.

20113253000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20113274 (or 20113260 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 20113253000 its reverse (35231102), we get a palindrome (20148484102).

The spelling of 20113253000 in words is "twenty billion, one hundred thirteen million, two hundred fifty-three thousand".