1231323032 has 32 divisors (see below), whose sum is σ = 2430470880. Its totient is φ = 583672320.

The previous prime is 1231323019. The next prime is 1231323043. The reversal of 1231323032 is 2303231321.

It is a junction number, because it is equal to n+sod(n) for n = 1231322995 and 1231323013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8819 + ... + 50402.

It is an arithmetic number, because the mean of its divisors is an integer number (75952215).

Almost surely, 2^1231323032 is an apocalyptic number.

It is an amenable number.

1231323032 is a deficient number, since it is larger than the sum of its proper divisors (1199147848).

1231323032 is a wasteful number, since it uses less digits than its factorization.

1231323032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59363 (or 59359 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1231323032 is about 35090.2127665251. The cubic root of 1231323032 is about 1071.8252922201.

Adding to 1231323032 its reverse (2303231321), we get a palindrome (3534554353).

The spelling of 1231323032 in words is "one billion, two hundred thirty-one million, three hundred twenty-three thousand, thirty-two".