1232130111 has 4 divisors (see below), whose sum is σ = 1642840152. Its totient is φ = 821420072.

The previous prime is 1232130089. The next prime is 1232130139. The reversal of 1232130111 is 1110312321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1232130111 - 2¹⁵ = 1232097343 is a prime.

It is a super-2 number, since 2×1232130111² = 3036289220865744642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232130311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205355016 + ... + 205355021.

It is an arithmetic number, because the mean of its divisors is an integer number (410710038).

Almost surely, 2^1232130111 is an apocalyptic number.

1232130111 is a deficient number, since it is larger than the sum of its proper divisors (410710041).

1232130111 is an equidigital number, since it uses as much as digits as its factorization.

1232130111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410710040.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1232130111 is about 35101.7109412063. The cubic root of 1232130111 is about 1072.0594194504.

Adding to 1232130111 its reverse (1110312321), we get a palindrome (2342442432).

The spelling of 1232130111 in words is "one billion, two hundred thirty-two million, one hundred thirty thousand, one hundred eleven".