11117902420 has 24 divisors (see below), whose sum is σ = 24720983784. Its totient is φ = 4185563136.

The previous prime is 11117902387. The next prime is 11117902423. The reversal of 11117902420 is 2420971111.

It can be written as a sum of positive squares in 4 ways, for example, as 3337603984 + 7780298436 = 57772^2 + 88206^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11117902423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16349517 + ... + 16350196.

It is an arithmetic number, because the mean of its divisors is an integer number (1030040991).

Almost surely, 2^11117902420 is an apocalyptic number.

11117902420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11117902420 is an abundant number, since it is smaller than the sum of its proper divisors (13603081364).

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

11117902420 is a wasteful number, since it uses less digits than its factorization.

11117902420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32699739 (or 32699737 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 11117902420 in words is "eleven billion, one hundred seventeen million, nine hundred two thousand, four hundred twenty".