121340030023 has 4 divisors (see below), whose sum is σ = 121414979160. Its totient is φ = 121265080888.

The previous prime is 121340030003. The next prime is 121340030029. The reversal of 121340030023 is 320030043121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121340030023 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 (121340030029) 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, 37472140 + ... + 37475377.

It is an arithmetic number, because the mean of its divisors is an integer number (30353744790).

Almost surely, 2^121340030023 is an apocalyptic number.

121340030023 is a deficient number, since it is larger than the sum of its proper divisors (74949137).

121340030023 is an equidigital number, since it uses as much as digits as its factorization.

121340030023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74949136.

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

Adding to 121340030023 its reverse (320030043121), we get a palindrome (441370073144).

The spelling of 121340030023 in words is "one hundred twenty-one billion, three hundred forty million, thirty thousand, twenty-three".