11513123400424 has 8 divisors (see below), whose sum is σ = 21587106375810. Its totient is φ = 5756561700208.

The previous prime is 11513123400419. The next prime is 11513123400451. The reversal of 11513123400424 is 42400432131511.

It is a happy number.

11513123400424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10305063022500 + 1208060377924 = 3210150^2 + 1099118^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719570212519 + ... + 719570212534.

Almost surely, 2^{11513123400424} is an apocalyptic number.

It is an amenable number.

11513123400424 is a deficient number, since it is larger than the sum of its proper divisors (10073982975386).

11513123400424 is a wasteful number, since it uses less digits than its factorization.

11513123400424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439140425059 (or 1439140425055 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 11513123400424 its reverse (42400432131511), we get a palindrome (53913555531935).

The spelling of 11513123400424 in words is "eleven trillion, five hundred thirteen billion, one hundred twenty-three million, four hundred thousand, four hundred twenty-four".