11420252540 has 24 divisors (see below), whose sum is σ = 24082053072. Its totient is φ = 4549144320.

The previous prime is 11420252521. The next prime is 11420252551. The reversal of 11420252540 is 4525202411.

It is a congruent number.

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, 1179854 + ... + 1189493.

It is an arithmetic number, because the mean of its divisors is an integer number (1003418878).

Almost surely, 2^11420252540 is an apocalyptic number.

11420252540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11420252540 is an abundant number, since it is smaller than the sum of its proper divisors (12661800532).

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

11420252540 is a wasteful number, since it uses less digits than its factorization.

11420252540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369597 (or 2369595 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 11420252540 its reverse (4525202411), we get a palindrome (15945454951).

The spelling of 11420252540 in words is "eleven billion, four hundred twenty million, two hundred fifty-two thousand, five hundred forty".