212013123316 has 24 divisors (see below), whose sum is σ = 372178316160. Its totient is φ = 105676604352.

The previous prime is 212013123239. The next prime is 212013123317. The reversal of 212013123316 is 613321310212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212013123317) 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, 6978976 + ... + 7009288.

It is an arithmetic number, because the mean of its divisors is an integer number (15507429840).

Almost surely, 2^212013123316 is an apocalyptic number.

It is an amenable number.

212013123316 is a deficient number, since it is larger than the sum of its proper divisors (160165192844).

212013123316 is a wasteful number, since it uses less digits than its factorization.

212013123316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35703 (or 35701 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 212013123316 its reverse (613321310212), we get a palindrome (825334433528).

The spelling of 212013123316 in words is "two hundred twelve billion, thirteen million, one hundred twenty-three thousand, three hundred sixteen".