1231235768 has 32 divisors (see below), whose sum is σ = 2641196160. Its totient is φ = 527105760.

The previous prime is 1231235767. The next prime is 1231235801. The reversal of 1231235768 is 8675321321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231235767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43055 + ... + 65697.

It is an arithmetic number, because the mean of its divisors is an integer number (82537380).

Almost surely, 2^1231235768 is an apocalyptic number.

It is an amenable number.

1231235768 is an abundant number, since it is smaller than the sum of its proper divisors (1409960392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231235768 is a wasteful number, since it uses less digits than its factorization.

1231235768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23627 (or 23623 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 1231235768 is about 35088.9693208564. The cubic root of 1231235768 is about 1071.7999714961.

The spelling of 1231235768 in words is "one billion, two hundred thirty-one million, two hundred thirty-five thousand, seven hundred sixty-eight".