1113401523 has 32 divisors (see below), whose sum is σ = 1614574080. Its totient is φ = 678424320.

The previous prime is 1113401483. The next prime is 1113401533. The reversal of 1113401523 is 3251043111.

It is not a de Polignac number, because 1113401523 - 2⁹ = 1113401011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1113401523.

It is not an unprimeable number, because it can be changed into a prime (1113401533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3101218 + ... + 3101576.

It is an arithmetic number, because the mean of its divisors is an integer number (50455440).

Almost surely, 2^1113401523 is an apocalyptic number.

1113401523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1113401523 is a deficient number, since it is larger than the sum of its proper divisors (501172557).

1113401523 is a wasteful number, since it uses less digits than its factorization.

1113401523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1113401523 is about 33367.6718246868. The cubic root of 1113401523 is about 1036.4553644229.

Adding to 1113401523 its reverse (3251043111), we get a palindrome (4364444634).

The spelling of 1113401523 in words is "one billion, one hundred thirteen million, four hundred one thousand, five hundred twenty-three".