121524101 has 2 divisors, whose sum is σ = 121524102. Its totient is φ = 121524100.

The previous prime is 121524079. The next prime is 121524119. The reversal of 121524101 is 101425121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115047076 + 6477025 = 10726^2 + 2545^2 .

It is a cyclic number.

It is not a de Polignac number, because 121524101 - 2⁶ = 121524037 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121524101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121524121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60762050 + 60762051.

It is an arithmetic number, because the mean of its divisors is an integer number (60762051).

Almost surely, 2^121524101 is an apocalyptic number.

It is an amenable number.

121524101 is a deficient number, since it is larger than the sum of its proper divisors (1).

121524101 is an equidigital number, since it uses as much as digits as its factorization.

121524101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 121524101 is about 11023.7970318761. The cubic root of 121524101 is about 495.3218340368.

Adding to 121524101 its reverse (101425121), we get a palindrome (222949222).

The spelling of 121524101 in words is "one hundred twenty-one million, five hundred twenty-four thousand, one hundred one".