1012231231 has 16 divisors (see below), whose sum is σ = 1119702528. Its totient is φ = 907379200.

The previous prime is 1012231183. The next prime is 1012231261. The reversal of 1012231231 is 1321322101.

It is a cyclic number.

It is not a de Polignac number, because 1012231231 - 2²⁵ = 978676799 is a prime.

It is a super-2 number, since 2×1012231231² = 2049224130023550722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012231261) 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, 831135 + ... + 832351.

It is an arithmetic number, because the mean of its divisors is an integer number (69981408).

Almost surely, 2^1012231231 is an apocalyptic number.

1012231231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1012231231 is a deficient number, since it is larger than the sum of its proper divisors (107471297).

1012231231 is a wasteful number, since it uses less digits than its factorization.

1012231231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1012231231 is about 31815.5815756997. The cubic root of 1012231231 is about 1004.0605664827.

Adding to 1012231231 its reverse (1321322101), we get a palindrome (2333553332).

The spelling of 1012231231 in words is "one billion, twelve million, two hundred thirty-one thousand, two hundred thirty-one".