1230312010121 has 16 divisors (see below), whose sum is σ = 1359467639424. Its totient is φ = 1107476561664.

The previous prime is 1230312010097. The next prime is 1230312010177. The reversal of 1230312010121 is 1210102130321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230312010121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230312010121.

It is not an unprimeable number, because it can be changed into a prime (1230312010021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3584411 + ... + 3912623.

It is an arithmetic number, because the mean of its divisors is an integer number (84966727464).

Almost surely, 2^{1230312010121} is an apocalyptic number.

It is an amenable number.

1230312010121 is a deficient number, since it is larger than the sum of its proper divisors (129155629303).

1230312010121 is a wasteful number, since it uses less digits than its factorization.

1230312010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337840.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1230312010121 its reverse (1210102130321), we get a palindrome (2440414140442).

The spelling of 1230312010121 in words is "one trillion, two hundred thirty billion, three hundred twelve million, ten thousand, one hundred twenty-one".