212423302143 has 80 divisors (see below), whose sum is σ = 359997496320. Its totient is φ = 123746128704.

The previous prime is 212423302139. The next prime is 212423302153. The reversal of 212423302143 is 341203324212.

212423302143 is a `hidden beast` number, since 21 + 2 + 423 + 3 + 0 + 214 + 3 = 666.

It is not a de Polignac number, because 212423302143 - 2² = 212423302139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212423302153) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 32147946 + ... + 32154552.

It is an arithmetic number, because the mean of its divisors is an integer number (4499968704).

Almost surely, 2^212423302143 is an apocalyptic number.

212423302143 is a deficient number, since it is larger than the sum of its proper divisors (147574194177).

212423302143 is a wasteful number, since it uses less digits than its factorization.

212423302143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8258 (or 8249 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 212423302143 its reverse (341203324212), we get a palindrome (553626626355).

The spelling of 212423302143 in words is "two hundred twelve billion, four hundred twenty-three million, three hundred two thousand, one hundred forty-three".