20112420260 has 48 divisors (see below), whose sum is σ = 42658551936. Its totient is φ = 7964662272.

The previous prime is 20112420247. The next prime is 20112420271. The reversal of 20112420260 is 6202421102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2180819 + ... + 2190021.

It is an arithmetic number, because the mean of its divisors is an integer number (888719832).

Almost surely, 2^20112420260 is an apocalyptic number.

20112420260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112420260 is an abundant number, since it is smaller than the sum of its proper divisors (22546131676).

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

20112420260 is a wasteful number, since it uses less digits than its factorization.

20112420260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10292 (or 10290 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20112420260 its reverse (6202421102), we get a palindrome (26314841362).

The spelling of 20112420260 in words is "twenty billion, one hundred twelve million, four hundred twenty thousand, two hundred sixty".