11514431320 has 64 divisors (see below), whose sum is σ = 29617773120. Its totient is φ = 3946573824.

The previous prime is 11514431303. The next prime is 11514431323. The reversal of 11514431320 is 2313441511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11514431323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1775604 + ... + 1782076.

It is an arithmetic number, because the mean of its divisors is an integer number (462777705).

Almost surely, 2^11514431320 is an apocalyptic number.

11514431320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11514431320 is an abundant number, since it is smaller than the sum of its proper divisors (18103341800).

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

11514431320 is a wasteful number, since it uses less digits than its factorization.

11514431320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12844 (or 12840 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 11514431320 its reverse (2313441511), we get a palindrome (13827872831).

The spelling of 11514431320 in words is "eleven billion, five hundred fourteen million, four hundred thirty-one thousand, three hundred twenty".