121340423023 has 2 divisors, whose sum is σ = 121340423024. Its totient is φ = 121340423022.

The previous prime is 121340422991. The next prime is 121340423101. The reversal of 121340423023 is 320324043121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121340423023 - 2⁵ = 121340422991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121340423123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60670211511 + 60670211512.

It is an arithmetic number, because the mean of its divisors is an integer number (60670211512).

Almost surely, 2^121340423023 is an apocalyptic number.

121340423023 is a deficient number, since it is larger than the sum of its proper divisors (1).

121340423023 is an equidigital number, since it uses as much as digits as its factorization.

121340423023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 121340423023 its reverse (320324043121), we get a palindrome (441664466144).

The spelling of 121340423023 in words is "one hundred twenty-one billion, three hundred forty million, four hundred twenty-three thousand, twenty-three".