1130042431 has 4 divisors (see below), whose sum is σ = 1291477072. Its totient is φ = 968607792.

The previous prime is 1130042387. The next prime is 1130042483. The reversal of 1130042431 is 1342400311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1130042431 - 2¹¹ = 1130040383 is a prime.

It is a super-2 number, since 2×1130042431² = 2553991791720779522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1130042399 and 1130042408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130042491) 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, 80717310 + ... + 80717323.

It is an arithmetic number, because the mean of its divisors is an integer number (322869268).

Almost surely, 2^1130042431 is an apocalyptic number.

1130042431 is a deficient number, since it is larger than the sum of its proper divisors (161434641).

1130042431 is an equidigital number, since it uses as much as digits as its factorization.

1130042431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161434640.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1130042431 is about 33616.1037450803. The cubic root of 1130042431 is about 1041.5934741049.

Adding to 1130042431 its reverse (1342400311), we get a palindrome (2472442742).

The spelling of 1130042431 in words is "one billion, one hundred thirty million, forty-two thousand, four hundred thirty-one".