1042243431 has 16 divisors (see below), whose sum is σ = 1405272960. Its totient is φ = 687065760.

The previous prime is 1042243403. The next prime is 1042243439. The reversal of 1042243431 is 1343422401.

It is not a de Polignac number, because 1042243431 - 2⁵ = 1042243399 is a prime.

It is a super-2 number, since 2×1042243431² = 2172542738925303522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042243439) 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, 91836 + ... + 102558.

It is an arithmetic number, because the mean of its divisors is an integer number (87829560).

Almost surely, 2^1042243431 is an apocalyptic number.

1042243431 is a deficient number, since it is larger than the sum of its proper divisors (363029529).

1042243431 is a wasteful number, since it uses less digits than its factorization.

1042243431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11086.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1042243431 is about 32283.7951765278. The cubic root of 1042243431 is about 1013.8873912583.

Adding to 1042243431 its reverse (1343422401), we get a palindrome (2385665832).

The spelling of 1042243431 in words is "one billion, forty-two million, two hundred forty-three thousand, four hundred thirty-one".