11202312440 has 32 divisors (see below), whose sum is σ = 27496586160. Its totient is φ = 4073568000.

The previous prime is 11202312439. The next prime is 11202312493. The reversal of 11202312440 is 4421320211.

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

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, 12729461 + ... + 12730340.

Almost surely, 2^11202312440 is an apocalyptic number.

11202312440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11202312440 is an abundant number, since it is smaller than the sum of its proper divisors (16294273720).

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

11202312440 is a wasteful number, since it uses less digits than its factorization.

11202312440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25459823 (or 25459819 counting only the distinct ones).

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

Adding to 11202312440 its reverse (4421320211), we get a palindrome (15623632651).

The spelling of 11202312440 in words is "eleven billion, two hundred two million, three hundred twelve thousand, four hundred forty".