1232100531 has 8 divisors (see below), whose sum is σ = 1825334160. Its totient is φ = 821400336.

The previous prime is 1232100491. The next prime is 1232100647. The reversal of 1232100531 is 1350012321.

1232100531 is a `hidden beast` number, since 1 + 2 + 32 + 100 + 531 = 666.

It is not a de Polignac number, because 1232100531 - 2⁷ = 1232100403 is a prime.

It is a super-2 number, since 2×1232100531² = 3036143436980963922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1232180531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22816650 + ... + 22816703.

It is an arithmetic number, because the mean of its divisors is an integer number (228166770).

Almost surely, 2^1232100531 is an apocalyptic number.

1232100531 is a deficient number, since it is larger than the sum of its proper divisors (593233629).

1232100531 is an equidigital number, since it uses as much as digits as its factorization.

1232100531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45633362 (or 45633356 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1232100531 is about 35101.2895916945. The cubic root of 1232100531 is about 1072.0508403317.

Adding to 1232100531 its reverse (1350012321), we get a palindrome (2582112852).

The spelling of 1232100531 in words is "one billion, two hundred thirty-two million, one hundred thousand, five hundred thirty-one".