1231113030 has 32 divisors (see below), whose sum is σ = 3376767744. Its totient is φ = 281397216.

The previous prime is 1231112977. The next prime is 1231113061. The reversal of 1231113030 is 303111321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2931012 + ... + 2931431.

It is an arithmetic number, because the mean of its divisors is an integer number (105523992).

Almost surely, 2^1231113030 is an apocalyptic number.

1231113030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231113030 is an abundant number, since it is smaller than the sum of its proper divisors (2145654714).

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

1231113030 is a wasteful number, since it uses less digits than its factorization.

1231113030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5862460.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1231113030 is about 35087.2203230749. The cubic root of 1231113030 is about 1071.7643555294.

Adding to 1231113030 its reverse (303111321), we get a palindrome (1534224351).

The spelling of 1231113030 in words is "one billion, two hundred thirty-one million, one hundred thirteen thousand, thirty".