212903833128 has 32 divisors (see below), whose sum is σ = 608296666560. Its totient is φ = 60829666560.

The previous prime is 212903833111. The next prime is 212903833139. The reversal of 212903833128 is 821338309212.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 212903833128.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633642193 + ... + 633642528.

It is an arithmetic number, because the mean of its divisors is an integer number (19009270830).

Almost surely, 2^212903833128 is an apocalyptic number.

212903833128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

212903833128 is an abundant number, since it is smaller than the sum of its proper divisors (395392833432).

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

212903833128 is a wasteful number, since it uses less digits than its factorization.

212903833128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267284737 (or 1267284733 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 212903833128 in words is "two hundred twelve billion, nine hundred three million, eight hundred thirty-three thousand, one hundred twenty-eight".