231212212230132 has 144 divisors (see below), whose sum is σ = 679285816809600. Its totient is φ = 64939210721280.

The previous prime is 231212212230127. The next prime is 231212212230169. The reversal of 231212212230132 is 231032212212132.

231212212230132 is a `hidden beast` number, since 2 + 3 + 1 + 212 + 212 + 230 + 1 + 3 + 2 = 666.

231212212230132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231212212230096 and 231212212230105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 611792844 + ... + 612170652.

Almost surely, 2^{231212212230132} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231212212230132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339642908404800).

231212212230132 is an abundant number, since it is smaller than the sum of its proper divisors (448073604579468).

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

231212212230132 is a wasteful number, since it uses less digits than its factorization.

231212212230132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419046 (or 419041 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 231212212230132 its reverse (231032212212132), we get a palindrome (462244424442264).

The spelling of 231212212230132 in words is "two hundred thirty-one trillion, two hundred twelve billion, two hundred twelve million, two hundred thirty thousand, one hundred thirty-two".