1031230431 has 72 divisors (see below), whose sum is σ = 1930915584. Its totient is φ = 524190240.

The previous prime is 1031230397. The next prime is 1031230439. The reversal of 1031230431 is 1340321301.

1031230431 is a `hidden beast` number, since 1 + 0 + 3 + 1 + 230 + 431 = 666.

It is not a de Polignac number, because 1031230431 - 2¹¹ = 1031228383 is a prime.

It is a super-2 number, since 2×1031230431² = 2126872403640891522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031230439) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 225736 + ... + 230258.

It is an arithmetic number, because the mean of its divisors is an integer number (26818272).

Almost surely, 2^1031230431 is an apocalyptic number.

1031230431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1031230431 is a deficient number, since it is larger than the sum of its proper divisors (899685153).

1031230431 is a wasteful number, since it uses less digits than its factorization.

1031230431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4601 (or 4591 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1031230431 is about 32112.7767563006. The cubic root of 1031230431 is about 1010.3036145676.

Adding to 1031230431 its reverse (1340321301), we get a palindrome (2371551732).

The spelling of 1031230431 in words is "one billion, thirty-one million, two hundred thirty thousand, four hundred thirty-one".