1230313131 has 24 divisors (see below), whose sum is σ = 1844699584. Its totient is φ = 819425160.

The previous prime is 1230313129. The next prime is 1230313157. The reversal of 1230313131 is 1313130321.

It is a happy number.

It is not a de Polignac number, because 1230313131 - 2¹ = 1230313129 is a prime.

It is a super-2 number, since 2×1230313131² = 3027340800622046322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230315131) 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, 370380 + ... + 373686.

Almost surely, 2^1230313131 is an apocalyptic number.

1230313131 is a deficient number, since it is larger than the sum of its proper divisors (614386453).

1230313131 is an equidigital number, since it uses as much as digits as its factorization.

1230313131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4853 (or 4841 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1230313131 is about 35075.8197480829. The cubic root of 1230313131 is about 1071.5321837856.

Adding to 1230313131 its reverse (1313130321), we get a palindrome (2543443452).

The spelling of 1230313131 in words is "one billion, two hundred thirty million, three hundred thirteen thousand, one hundred thirty-one".