11323451540 has 24 divisors (see below), whose sum is σ = 24813129600. Its totient is φ = 4332450848.

The previous prime is 11323451519. The next prime is 11323451551. The reversal of 11323451540 is 4515432311.

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, 12307640 + ... + 12308559.

It is an arithmetic number, because the mean of its divisors is an integer number (1033880400).

Almost surely, 2^11323451540 is an apocalyptic number.

11323451540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11323451540 is an abundant number, since it is smaller than the sum of its proper divisors (13489678060).

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

11323451540 is a wasteful number, since it uses less digits than its factorization.

11323451540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24616231 (or 24616229 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 11323451540 its reverse (4515432311), we get a palindrome (15838883851).

The spelling of 11323451540 in words is "eleven billion, three hundred twenty-three million, four hundred fifty-one thousand, five hundred forty".