1231012 has 12 divisors (see below), whose sum is σ = 2162160. Its totient is φ = 613256.

The previous prime is 1231003. The next prime is 1231039. The reversal of 1231012 is 2101321.

It is a self number, because there is not a number n which added to its sum of digits gives 1231012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1539 + ... + 2197.

It is an arithmetic number, because the mean of its divisors is an integer number (180180).

2^1231012 is an apocalyptic number.

It is an amenable number.

1231012 is a deficient number, since it is larger than the sum of its proper divisors (931148).

1231012 is a wasteful number, since it uses less digits than its factorization.

1231012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1231012 is about 1109.5098016692. The cubic root of 1231012 is about 107.1735036988.

Adding to 1231012 its reverse (2101321), we get a palindrome (3332333).

The spelling of 1231012 in words is "one million, two hundred thirty-one thousand, twelve".