1231303333012 has 12 divisors (see below), whose sum is σ = 2154994692480. Its totient is φ = 615590563736.

The previous prime is 1231303332989. The next prime is 1231303333031. The reversal of 1231303333012 is 2103333031321.

It is a super-2 number, since 2×1231303333012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 15230338 + ... + 15310969.

It is an arithmetic number, because the mean of its divisors is an integer number (179582891040).

Almost surely, 2^{1231303333012} is an apocalyptic number.

It is an amenable number.

1231303333012 is a deficient number, since it is larger than the sum of its proper divisors (923691359468).

1231303333012 is a wasteful number, since it uses less digits than its factorization.

1231303333012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30551390 (or 30551388 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 1231303333012 its reverse (2103333031321), we get a palindrome (3334636364333).

The spelling of 1231303333012 in words is "one trillion, two hundred thirty-one billion, three hundred three million, three hundred thirty-three thousand, twelve".