11132331420 has 96 divisors (see below), whose sum is σ = 37498406400. Its totient is φ = 2410608384.

The previous prime is 11132331383. The next prime is 11132331449. The reversal of 11132331420 is 2413323111.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 689535 + ... + 705494.

It is an arithmetic number, because the mean of its divisors is an integer number (390608400).

Almost surely, 2^11132331420 is an apocalyptic number.

11132331420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11132331420 is an abundant number, since it is smaller than the sum of its proper divisors (26366074980).

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

11132331420 is a wasteful number, since it uses less digits than its factorization.

11132331420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395067 (or 1395065 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11132331420 its reverse (2413323111), we get a palindrome (13545654531).

The spelling of 11132331420 in words is "eleven billion, one hundred thirty-two million, three hundred thirty-one thousand, four hundred twenty".