1231013452 has 48 divisors (see below), whose sum is σ = 2404043712. Its totient is φ = 548556800.

The previous prime is 1231013449. The next prime is 1231013473. The reversal of 1231013452 is 2543101321.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154068 + ... + 161860.

It is an arithmetic number, because the mean of its divisors is an integer number (50084244).

Almost surely, 2^1231013452 is an apocalyptic number.

It is an amenable number.

1231013452 is a deficient number, since it is larger than the sum of its proper divisors (1173030260).

1231013452 is a wasteful number, since it uses less digits than its factorization.

1231013452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7938 (or 7936 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1231013452 is about 35085.8012877004. The cubic root of 1231013452 is about 1071.7354583645.

Adding to 1231013452 its reverse (2543101321), we get a palindrome (3774114773).

The spelling of 1231013452 in words is "one billion, two hundred thirty-one million, thirteen thousand, four hundred fifty-two".