121004423 has 2 divisors, whose sum is σ = 121004424. Its totient is φ = 121004422.

The previous prime is 121004417. The next prime is 121004437. The reversal of 121004423 is 324400121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121004423 - 2⁸ = 121004167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121000423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60502211 + 60502212.

It is an arithmetic number, because the mean of its divisors is an integer number (60502212).

Almost surely, 2^121004423 is an apocalyptic number.

121004423 is a deficient number, since it is larger than the sum of its proper divisors (1).

121004423 is an equidigital number, since it uses as much as digits as its factorization.

121004423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 121004423 is about 11000.2010436173. The cubic root of 121004423 is about 494.6147708478.

Adding to 121004423 its reverse (324400121), we get a palindrome (445404544).

The spelling of 121004423 in words is "one hundred twenty-one million, four thousand, four hundred twenty-three".