212423312129 has 8 divisors (see below), whose sum is σ = 243024249600. Its totient is φ = 181886062176.

The previous prime is 212423312083. The next prime is 212423312183. The reversal of 212423312129 is 921213324212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212423312129 - 2²⁸ = 212154876673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212423312095 and 212423312104.

It is not an unprimeable number, because it can be changed into a prime (212423312429) 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, 15914729 + ... + 15928070.

It is an arithmetic number, because the mean of its divisors is an integer number (30378031200).

Almost surely, 2^212423312129 is an apocalyptic number.

It is an amenable number.

212423312129 is a deficient number, since it is larger than the sum of its proper divisors (30600937471).

212423312129 is an equidigital number, since it uses as much as digits as its factorization.

212423312129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31843759.

The product of its digits is 10368, while the sum is 32.

The spelling of 212423312129 in words is "two hundred twelve billion, four hundred twenty-three million, three hundred twelve thousand, one hundred twenty-nine".