121234523 has 2 divisors, whose sum is σ = 121234524. Its totient is φ = 121234522.

The previous prime is 121234517. The next prime is 121234543. The reversal of 121234523 is 325432121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121234523 - 2¹⁰ = 121233499 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (121234543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60617261 + 60617262.

It is an arithmetic number, because the mean of its divisors is an integer number (60617262).

Almost surely, 2^121234523 is an apocalyptic number.

121234523 is a deficient number, since it is larger than the sum of its proper divisors (1).

121234523 is an equidigital number, since it uses as much as digits as its factorization.

121234523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 121234523 is about 11010.6549759767. The cubic root of 121234523 is about 494.9280894075.

Adding to 121234523 its reverse (325432121), we get a palindrome (446666644).

The spelling of 121234523 in words is "one hundred twenty-one million, two hundred thirty-four thousand, five hundred twenty-three".