1113421431 has 16 divisors (see below), whose sum is σ = 1499503104. Its totient is φ = 734826624.

The previous prime is 1113421381. The next prime is 1113421459. The reversal of 1113421431 is 1341243111.

It is not a de Polignac number, because 1113421431 - 2⁶ = 1113421367 is a prime.

It is a super-2 number, since 2×1113421431² = 2479414566020175522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1113421398 and 1113421407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113421931) 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, 401010 + ... + 403776.

It is an arithmetic number, because the mean of its divisors is an integer number (93718944).

Almost surely, 2^1113421431 is an apocalyptic number.

1113421431 is a deficient number, since it is larger than the sum of its proper divisors (386081673).

1113421431 is a wasteful number, since it uses less digits than its factorization.

1113421431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070.

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

The square root of 1113421431 is about 33367.9701360451. The cubic root of 1113421431 is about 1036.4615417782.

Adding to 1113421431 its reverse (1341243111), we get a palindrome (2454664542).

The spelling of 1113421431 in words is "one billion, one hundred thirteen million, four hundred twenty-one thousand, four hundred thirty-one".