23020020036 has 36 divisors (see below), whose sum is σ = 62665611372. Its totient is φ = 7083082944.

The previous prime is 23020020007. The next prime is 23020020109. The reversal of 23020020036 is 63002002032.

23020020036 is a `hidden beast` number, since 230 + 200 + 200 + 36 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13757882436 + 9262137600 = 117294^2 + 96240^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24593571 + ... + 24594506.

It is an arithmetic number, because the mean of its divisors is an integer number (1740711427).

Almost surely, 2^23020020036 is an apocalyptic number.

23020020036 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23020020036 is an abundant number, since it is smaller than the sum of its proper divisors (39645591336).

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

23020020036 is a wasteful number, since it uses less digits than its factorization.

23020020036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49188100 (or 49188095 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 23020020036 its reverse (63002002032), we get a palindrome (86022022068).

The spelling of 23020020036 in words is "twenty-three billion, twenty million, twenty thousand, thirty-six".