1231012532 has 48 divisors (see below), whose sum is σ = 2375170560. Its totient is φ = 556292352.

The previous prime is 1231012529. The next prime is 1231012567. The reversal of 1231012532 is 2352101321.

It is a congruent 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, 120488 + ... + 130304.

It is an arithmetic number, because the mean of its divisors is an integer number (49482720).

Almost surely, 2^1231012532 is an apocalyptic number.

It is an amenable number.

1231012532 is a deficient number, since it is larger than the sum of its proper divisors (1144158028).

1231012532 is a wasteful number, since it uses less digits than its factorization.

1231012532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9920 (or 9918 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1231012532 is about 35085.7881769813. The cubic root of 1231012532 is about 1071.7351913767.

Adding to 1231012532 its reverse (2352101321), we get a palindrome (3583113853).

It can be divided in two parts, 12310 and 12532, that added together give a palindrome (24842).

The spelling of 1231012532 in words is "one billion, two hundred thirty-one million, twelve thousand, five hundred thirty-two".