121116523 has 12 divisors (see below), whose sum is σ = 133437304. Its totient is φ = 109850400.

The previous prime is 121116521. The next prime is 121116529. The reversal of 121116523 is 325611121.

It is a happy number.

It is not a de Polignac number, because 121116523 - 2¹ = 121116521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121116494 and 121116503.

It is not an unprimeable number, because it can be changed into a prime (121116521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68215 + ... + 69967.

Almost surely, 2^121116523 is an apocalyptic number.

121116523 is a deficient number, since it is larger than the sum of its proper divisors (12320781).

121116523 is a wasteful number, since it uses less digits than its factorization.

121116523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346 (or 2335 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 121116523 is about 11005.2952254812. The cubic root of 121116523 is about 494.7674627941.

Adding to 121116523 its reverse (325611121), we get a palindrome (446727644).

The spelling of 121116523 in words is "one hundred twenty-one million, one hundred sixteen thousand, five hundred twenty-three".