1201221002323 has 16 divisors (see below), whose sum is σ = 1319562950400. Its totient is φ = 1088401834080.

The previous prime is 1201221002309. The next prime is 1201221002363. The reversal of 1201221002323 is 3232001221021.

It is a cyclic number.

It is not a de Polignac number, because 1201221002323 - 2⁵ = 1201221002291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 1201221002323.

It is not an unprimeable number, because it can be changed into a prime (1201221002363) 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, 3989188 + ... + 4279726.

It is an arithmetic number, because the mean of its divisors is an integer number (82472684400).

Almost surely, 2^{1201221002323} is an apocalyptic number.

1201221002323 is a deficient number, since it is larger than the sum of its proper divisors (118341948077).

1201221002323 is a wasteful number, since it uses less digits than its factorization.

1201221002323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300042.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1201221002323 its reverse (3232001221021), we get a palindrome (4433222223344).

The spelling of 1201221002323 in words is "one trillion, two hundred one billion, two hundred twenty-one million, two thousand, three hundred twenty-three".