1231004032 has 16 divisors (see below), whose sum is σ = 2452391100. Its totient is φ = 615501952.

The previous prime is 1231004003. The next prime is 1231004069. The reversal of 1231004032 is 2304001321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1231003997 and 1231004015.

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 as a sum of consecutive naturals, namely, 4808482 + ... + 4808737.

Almost surely, 2^1231004032 is an apocalyptic number.

It is an amenable number.

1231004032 is a deficient number, since it is larger than the sum of its proper divisors (1221387068).

1231004032 is an frugal number, since it uses more digits than its factorization.

1231004032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9617233 (or 9617221 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1231004032 is about 35085.6670451055. The cubic root of 1231004032 is about 1071.7327246349.

Adding to 1231004032 its reverse (2304001321), we get a palindrome (3535005353).

The spelling of 1231004032 in words is "one billion, two hundred thirty-one million, four thousand, thirty-two".