1231443032 has 8 divisors (see below), whose sum is σ = 2308955700. Its totient is φ = 615721512.

The previous prime is 1231443019. The next prime is 1231443047. The reversal of 1231443032 is 2303441321.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1231443032² = 3032903882122706048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231442989 and 1231443007.

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, 76965182 + ... + 76965197.

Almost surely, 2^1231443032 is an apocalyptic number.

It is an amenable number.

1231443032 is a deficient number, since it is larger than the sum of its proper divisors (1077512668).

1231443032 is a wasteful number, since it uses less digits than its factorization.

1231443032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153930385 (or 153930381 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1231443032 is about 35091.9226033570. The cubic root of 1231443032 is about 1071.8601097439.

Adding to 1231443032 its reverse (2303441321), we get a palindrome (3534884353).

The spelling of 1231443032 in words is "one billion, two hundred thirty-one million, four hundred forty-three thousand, thirty-two".