212312423252 has 24 divisors (see below), whose sum is σ = 390079507776. Its totient is φ = 100917767808.

The previous prime is 212312423243. The next prime is 212312423263. The reversal of 212312423252 is 252324213212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7063973 + ... + 7093964.

It is an arithmetic number, because the mean of its divisors is an integer number (16253312824).

Almost surely, 2^212312423252 is an apocalyptic number.

It is an amenable number.

212312423252 is a deficient number, since it is larger than the sum of its proper divisors (177767084524).

212312423252 is a wasteful number, since it uses less digits than its factorization.

212312423252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14158127 (or 14158125 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

Adding to 212312423252 its reverse (252324213212), we get a palindrome (464636636464).

The spelling of 212312423252 in words is "two hundred twelve billion, three hundred twelve million, four hundred twenty-three thousand, two hundred fifty-two".