11323013140 has 24 divisors (see below), whose sum is σ = 25029819360. Its totient is φ = 4290825888.

The previous prime is 11323013129. The next prime is 11323013179. The reversal of 11323013140 is 4131032311.

It is a super-2 number, since 2×11323013140² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 14898322 + ... + 14899081.

It is an arithmetic number, because the mean of its divisors is an integer number (1042909140).

Almost surely, 2^11323013140 is an apocalyptic number.

11323013140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11323013140 is an abundant number, since it is smaller than the sum of its proper divisors (13706806220).

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

11323013140 is a wasteful number, since it uses less digits than its factorization.

11323013140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29797431 (or 29797429 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11323013140 its reverse (4131032311), we get a palindrome (15454045451).

The spelling of 11323013140 in words is "eleven billion, three hundred twenty-three million, thirteen thousand, one hundred forty".