11420039997 has 12 divisors (see below), whose sum is σ = 17027730304. Its totient is φ = 7367767560.

The previous prime is 11420039989. The next prime is 11420040029. The reversal of 11420039997 is 79993002411.

It is not a de Polignac number, because 11420039997 - 2³ = 11420039989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420039947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20465743 + ... + 20466300.

Almost surely, 2^11420039997 is an apocalyptic number.

It is an amenable number.

11420039997 is a deficient number, since it is larger than the sum of its proper divisors (5607690307).

11420039997 is a wasteful number, since it uses less digits than its factorization.

11420039997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40932080 (or 40932077 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The spelling of 11420039997 in words is "eleven billion, four hundred twenty million, thirty-nine thousand, nine hundred ninety-seven".