1022023431 has 24 divisors (see below), whose sum is σ = 1734344976. Its totient is φ = 571760640.

The previous prime is 1022023421. The next prime is 1022023477. The reversal of 1022023431 is 1343202201.

1022023431 is a `hidden beast` number, since 10 + 220 + 2 + 3 + 431 = 666.

It is not a de Polignac number, because 1022023431 - 2⁵ = 1022023399 is a prime.

It is a super-2 number, since 2×1022023431² = 2089063787026023522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022023411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 395770 + ... + 398343.

It is an arithmetic number, because the mean of its divisors is an integer number (72264374).

Almost surely, 2^1022023431 is an apocalyptic number.

1022023431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1022023431 is a deficient number, since it is larger than the sum of its proper divisors (712321545).

1022023431 is a wasteful number, since it uses less digits than its factorization.

1022023431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794143 (or 794140 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1022023431 is about 31969.1011916194. The cubic root of 1022023431 is about 1007.2879011351.

Adding to 1022023431 its reverse (1343202201), we get a palindrome (2365225632).

The spelling of 1022023431 in words is "one billion, twenty-two million, twenty-three thousand, four hundred thirty-one".