1231011230 has 32 divisors (see below), whose sum is σ = 2247792768. Its totient is φ = 485344000.

The previous prime is 1231011217. The next prime is 1231011233. The reversal of 1231011230 is 321101321.

It is a super-2 number, since 2×1231011230² = 3030777296772225800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231011233) 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, 232715 + ... + 237945.

It is an arithmetic number, because the mean of its divisors is an integer number (70243524).

Almost surely, 2^1231011230 is an apocalyptic number.

1231011230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231011230 is a deficient number, since it is larger than the sum of its proper divisors (1016781538).

1231011230 is a wasteful number, since it uses less digits than its factorization.

1231011230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1231011230 is about 35085.7696224552. The cubic root of 1231011230 is about 1071.7348135306.

Adding to 1231011230 its reverse (321101321), we get a palindrome (1552112551).

Subtracting from 1231011230 its reverse (321101321), we obtain a palindrome (909909909).

The spelling of 1231011230 in words is "one billion, two hundred thirty-one million, eleven thousand, two hundred thirty".