121333412423 has 4 divisors (see below), whose sum is σ = 121427397768. Its totient is φ = 121239427080.

The previous prime is 121333412419. The next prime is 121333412437. The reversal of 121333412423 is 324214333121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324214333121 = 7 ⋅46316333303.

It is a cyclic number.

It is not a de Polignac number, because 121333412423 - 2² = 121333412419 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 (121333412723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46990736 + ... + 46993317.

It is an arithmetic number, because the mean of its divisors is an integer number (30356849442).

Almost surely, 2^121333412423 is an apocalyptic number.

121333412423 is a deficient number, since it is larger than the sum of its proper divisors (93985345).

121333412423 is an equidigital number, since it uses as much as digits as its factorization.

121333412423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93985344.

The product of its digits is 10368, while the sum is 29.

Adding to 121333412423 its reverse (324214333121), we get a palindrome (445547745544).

The spelling of 121333412423 in words is "one hundred twenty-one billion, three hundred thirty-three million, four hundred twelve thousand, four hundred twenty-three".