11431133320 has 32 divisors (see below), whose sum is σ = 25863753600. Its totient is φ = 4546906048.

The previous prime is 11431133299. The next prime is 11431133321. The reversal of 11431133320 is 2333113411.

It is a super-2 number, since 2×11431133320² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11431133291 and 11431133300.

It is not an unprimeable number, because it can be changed into a prime (11431133321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 791104 + ... + 805423.

It is an arithmetic number, because the mean of its divisors is an integer number (808242300).

Almost surely, 2^11431133320 is an apocalyptic number.

11431133320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11431133320 is an abundant number, since it is smaller than the sum of its proper divisors (14432620280).

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

11431133320 is a wasteful number, since it uses less digits than its factorization.

11431133320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596717 (or 1596713 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 11431133320 its reverse (2333113411), we get a palindrome (13764246731).

The spelling of 11431133320 in words is "eleven billion, four hundred thirty-one million, one hundred thirty-three thousand, three hundred twenty".