1113423141 has 4 divisors (see below), whose sum is σ = 1484564192. Its totient is φ = 742282092.

The previous prime is 1113423137. The next prime is 1113423149. The reversal of 1113423141 is 1413243111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1113423141 - 2² = 1113423137 is a prime.

It is a super-2 number, since 2×1113423141² = 2479422181828611762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113423149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185570521 + ... + 185570526.

It is an arithmetic number, because the mean of its divisors is an integer number (371141048).

Almost surely, 2^1113423141 is an apocalyptic number.

It is an amenable number.

1113423141 is a deficient number, since it is larger than the sum of its proper divisors (371141051).

1113423141 is an equidigital number, since it uses as much as digits as its factorization.

1113423141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371141050.

The product of its digits is 288, while the sum is 21.

The square root of 1113423141 is about 33367.9957594099. The cubic root of 1113423141 is about 1036.4620723794.

Adding to 1113423141 its reverse (1413243111), we get a palindrome (2526666252).

The spelling of 1113423141 in words is "one billion, one hundred thirteen million, four hundred twenty-three thousand, one hundred forty-one".