1231031230 has 32 divisors (see below), whose sum is σ = 2603246688. Its totient is φ = 413212800.

The previous prime is 1231031213. The next prime is 1231031233. The reversal of 1231031230 is 321301321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231031233) 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, 429001 + ... + 431860.

It is an arithmetic number, because the mean of its divisors is an integer number (81351459).

Almost surely, 2^1231031230 is an apocalyptic number.

1231031230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231031230 is an abundant number, since it is smaller than the sum of its proper divisors (1372215458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231031230 is a wasteful number, since it uses less digits than its factorization.

1231031230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860892.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1231031230 is about 35086.0546371347. The cubic root of 1231031230 is about 1071.7406175882.

Adding to 1231031230 its reverse (321301321), we get a palindrome (1552332551).

The spelling of 1231031230 in words is "one billion, two hundred thirty-one million, thirty-one thousand, two hundred thirty".