1022431431 has 16 divisors (see below), whose sum is σ = 1583533568. Its totient is φ = 574668000.

The previous prime is 1022431387. The next prime is 1022431451. The reversal of 1022431431 is 1341342201.

1022431431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1022431431 - 2¹⁷ = 1022300359 is a prime.

It is a super-2 number, since 2×1022431431² = 2090732062193415522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022431398 and 1022431407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022431451) 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, 397795 + ... + 400356.

It is an arithmetic number, because the mean of its divisors is an integer number (98970848).

Almost surely, 2^1022431431 is an apocalyptic number.

1022431431 is a deficient number, since it is larger than the sum of its proper divisors (561102137).

1022431431 is an equidigital number, since it uses as much as digits as its factorization.

1022431431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798222.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1022431431 is about 31975.4817164652. The cubic root of 1022431431 is about 1007.4219224550.

Adding to 1022431431 its reverse (1341342201), we get a palindrome (2363773632).

The spelling of 1022431431 in words is "one billion, twenty-two million, four hundred thirty-one thousand, four hundred thirty-one".