212311432104 has 32 divisors (see below), whose sum is σ = 532076352000. Its totient is φ = 70597441152.

The previous prime is 212311432097. The next prime is 212311432139. The reversal of 212311432104 is 401234113212.

It is a super-2 number, since 2×212311432104² (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10804744 + ... + 10824375.

It is an arithmetic number, because the mean of its divisors is an integer number (16627386000).

Almost surely, 2^212311432104 is an apocalyptic number.

212311432104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212311432104 is an abundant number, since it is smaller than the sum of its proper divisors (319764919896).

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

212311432104 is a wasteful number, since it uses less digits than its factorization.

212311432104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21629537 (or 21629533 counting only the distinct ones).

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

Adding to 212311432104 its reverse (401234113212), we get a palindrome (613545545316).

The spelling of 212311432104 in words is "two hundred twelve billion, three hundred eleven million, four hundred thirty-two thousand, one hundred four".