121212103323 has 16 divisors (see below), whose sum is σ = 161767821600. Its totient is φ = 80732271360.

The previous prime is 121212103307. The next prime is 121212103339. The reversal of 121212103323 is 323301212121.

It is an interprime number because it is at equal distance from previous prime (121212103307) and next prime (121212103339).

It is not a de Polignac number, because 121212103323 - 2⁴ = 121212103307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121212103323.

It is not an unprimeable number, because it can be changed into a prime (121212103303) 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, 21378733 + ... + 21384401.

It is an arithmetic number, because the mean of its divisors is an integer number (10110488850).

Almost surely, 2^121212103323 is an apocalyptic number.

121212103323 is a deficient number, since it is larger than the sum of its proper divisors (40555718277).

121212103323 is a wasteful number, since it uses less digits than its factorization.

121212103323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11102.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121212103323 its reverse (323301212121), we get a palindrome (444513315444).

The spelling of 121212103323 in words is "one hundred twenty-one billion, two hundred twelve million, one hundred three thousand, three hundred twenty-three".