212313130121 has 8 divisors (see below), whose sum is σ = 212589172224. Its totient is φ = 212037265440.

The previous prime is 212313130109. The next prime is 212313130123. The reversal of 212313130121 is 121031313212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212313130121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212313130093 and 212313130102.

It is not an unprimeable number, because it can be changed into a prime (212313130123) 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, 2440061 + ... + 2525573.

It is an arithmetic number, because the mean of its divisors is an integer number (26573646528).

Almost surely, 2^212313130121 is an apocalyptic number.

It is an amenable number.

212313130121 is a deficient number, since it is larger than the sum of its proper divisors (276042103).

212313130121 is a wasteful number, since it uses less digits than its factorization.

212313130121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88711.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 212313130121 its reverse (121031313212), we get a palindrome (333344443333).

The spelling of 212313130121 in words is "two hundred twelve billion, three hundred thirteen million, one hundred thirty thousand, one hundred twenty-one".