1283403853212 has 24 divisors (see below), whose sum is σ = 3224963528976. Its totient is φ = 394893493248.

The previous prime is 1283403853211. The next prime is 1283403853229. The reversal of 1283403853212 is 2123583043821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283403853211) 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, 4113473733 + ... + 4113474044.

It is an arithmetic number, because the mean of its divisors is an integer number (134373480374).

Almost surely, 2^{1283403853212} is an apocalyptic number.

1283403853212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1283403853212 is an abundant number, since it is smaller than the sum of its proper divisors (1941559675764).

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

1283403853212 is a wasteful number, since it uses less digits than its factorization.

1283403853212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8226947797 (or 8226947795 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 1283403853212 in words is "one trillion, two hundred eighty-three billion, four hundred three million, eight hundred fifty-three thousand, two hundred twelve".