1232131104 has 36 divisors (see below), whose sum is σ = 3503873646. Its totient is φ = 410710272.

The previous prime is 1232131081. The next prime is 1232131127. The reversal of 1232131104 is 4011312321.

It is an interprime number because it is at equal distance from previous prime (1232131081) and next prime (1232131127).

It can be written as a sum of positive squares in only one way, i.e., 1232010000 + 121104 = 35100^2 + 348^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2138829 + ... + 2139404.

Almost surely, 2^1232131104 is an apocalyptic number.

It is an amenable number.

1232131104 is an abundant number, since it is smaller than the sum of its proper divisors (2271742542).

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

1232131104 is a wasteful number, since it uses less digits than its factorization.

1232131104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278249 (or 4278238 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1232131104 is about 35101.7250858131. The cubic root of 1232131104 is about 1072.0597074489.

Adding to 1232131104 its reverse (4011312321), we get a palindrome (5243443425).

The spelling of 1232131104 in words is "one billion, two hundred thirty-two million, one hundred thirty-one thousand, one hundred four".