11232140420 has 12 divisors (see below), whose sum is σ = 23587494924. Its totient is φ = 4492856160.

The previous prime is 11232140393. The next prime is 11232140473. The reversal of 11232140420 is 2404123211.

It can be written as a sum of positive squares in 2 ways, for example, as 2572721284 + 8659419136 = 50722^2 + 93056^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 561607021 = 11232140420 / (1 + 1 + 2 + 3 + 2 + 1 + 4 + 0 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 11232140392 and 11232140401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280803491 + ... + 280803530.

It is an arithmetic number, because the mean of its divisors is an integer number (1965624577).

Almost surely, 2^11232140420 is an apocalyptic number.

11232140420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11232140420 is an abundant number, since it is smaller than the sum of its proper divisors (12355354504).

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

11232140420 is a wasteful number, since it uses less digits than its factorization.

11232140420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561607030 (or 561607028 counting only the distinct ones).

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

Adding to 11232140420 its reverse (2404123211), we get a palindrome (13636263631).

The spelling of 11232140420 in words is "eleven billion, two hundred thirty-two million, one hundred forty thousand, four hundred twenty".