121270523 has 4 divisors (see below), whose sum is σ = 132295128. Its totient is φ = 110245920.

The previous prime is 121270507. The next prime is 121270529. The reversal of 121270523 is 325072121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 121270523 - 2⁴ = 121270507 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121270529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5512286 + ... + 5512307.

It is an arithmetic number, because the mean of its divisors is an integer number (33073782).

Almost surely, 2^121270523 is an apocalyptic number.

121270523 is a deficient number, since it is larger than the sum of its proper divisors (11024605).

121270523 is a wasteful number, since it uses less digits than its factorization.

121270523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11024604.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 121270523 is about 11012.2896347671. The cubic root of 121270523 is about 494.9770733863.

The spelling of 121270523 in words is "one hundred twenty-one million, two hundred seventy thousand, five hundred twenty-three".