212010023430 has 64 divisors (see below), whose sum is σ = 565496363520. Its totient is φ = 56522376288.

The previous prime is 212010023371. The next prime is 212010023431. The reversal of 212010023430 is 34320010212.

212010023430 is a `hidden beast` number, since 212 + 0 + 1 + 0 + 0 + 23 + 430 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212010023431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1053079 + ... + 1238141.

It is an arithmetic number, because the mean of its divisors is an integer number (8835880680).

Almost surely, 2^212010023430 is an apocalyptic number.

212010023430 is an abundant number, since it is smaller than the sum of its proper divisors (353486340090).

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

212010023430 is a wasteful number, since it uses less digits than its factorization.

212010023430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189322 (or 189316 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212010023430 its reverse (34320010212), we get a palindrome (246330033642).

The spelling of 212010023430 in words is "two hundred twelve billion, ten million, twenty-three thousand, four hundred thirty".