212030032128 has 72 divisors (see below), whose sum is σ = 564403898688. Its totient is φ = 70664804352.

The previous prime is 212030032061. The next prime is 212030032129. The reversal of 212030032128 is 821230030212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 212030032098 and 212030032107.

It is not an unprimeable number, because it can be changed into a prime (212030032129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5366301 + ... + 5405667.

Almost surely, 2^212030032128 is an apocalyptic number.

It is an amenable number.

212030032128 is an abundant number, since it is smaller than the sum of its proper divisors (352373866560).

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

212030032128 is an equidigital number, since it uses as much as digits as its factorization.

212030032128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46399 (or 46385 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The spelling of 212030032128 in words is "two hundred twelve billion, thirty million, thirty-two thousand, one hundred twenty-eight".