1212013100323 has 4 divisors (see below), whose sum is σ = 1212019154640. Its totient is φ = 1212007046008.

The previous prime is 1212013100261. The next prime is 1212013100327. The reversal of 1212013100323 is 3230013102121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1212013100323 - 2²¹ = 1212011003171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212013100323.

It is not an unprimeable number, because it can be changed into a prime (1212013100327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2716228 + ... + 3130801.

It is an arithmetic number, because the mean of its divisors is an integer number (303004788660).

Almost surely, 2^{1212013100323} is an apocalyptic number.

1212013100323 is a deficient number, since it is larger than the sum of its proper divisors (6054317).

1212013100323 is an equidigital number, since it uses as much as digits as its factorization.

1212013100323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6054316.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1212013100323 its reverse (3230013102121), we get a palindrome (4442026202444).

The spelling of 1212013100323 in words is "one trillion, two hundred twelve billion, thirteen million, one hundred thousand, three hundred twenty-three".