212123431302 has 32 divisors (see below), whose sum is σ = 430453730304. Its totient is φ = 69674404800.

The previous prime is 212123431207. The next prime is 212123431327. The reversal of 212123431302 is 203134321212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 663978 + ... + 930114.

It is an arithmetic number, because the mean of its divisors is an integer number (13451679072).

Almost surely, 2^212123431302 is an apocalyptic number.

212123431302 is an abundant number, since it is smaller than the sum of its proper divisors (218330299002).

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

212123431302 is a wasteful number, since it uses less digits than its factorization.

212123431302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268084.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 212123431302 its reverse (203134321212), we get a palindrome (415257752514).

The spelling of 212123431302 in words is "two hundred twelve billion, one hundred twenty-three million, four hundred thirty-one thousand, three hundred two".