1221023300023 has 8 divisors (see below), whose sum is σ = 1228834342736. Its totient is φ = 1213223961600.

The previous prime is 1221023299927. The next prime is 1221023300093. The reversal of 1221023300023 is 3200033201221.

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

It is a cyclic number.

It is not a de Polignac number, because 1221023300023 - 2³³ = 1212433365431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221023300093) 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, 2716713 + ... + 3134098.

It is an arithmetic number, because the mean of its divisors is an integer number (153604292842).

Almost surely, 2^{1221023300023} is an apocalyptic number.

1221023300023 is a deficient number, since it is larger than the sum of its proper divisors (7811042713).

1221023300023 is a wasteful number, since it uses less digits than its factorization.

1221023300023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5852145.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1221023300023 its reverse (3200033201221), we get a palindrome (4421056501244).

The spelling of 1221023300023 in words is "one trillion, two hundred twenty-one billion, twenty-three million, three hundred thousand, twenty-three".