121650113 has 16 divisors (see below), whose sum is σ = 139216896. Its totient is φ = 105304320.

The previous prime is 121650083. The next prime is 121650127. The reversal of 121650113 is 311056121.

It is a cyclic number.

It is not a de Polignac number, because 121650113 - 2¹⁶ = 121584577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121650143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72320 + ... + 73982.

It is an arithmetic number, because the mean of its divisors is an integer number (8701056).

Almost surely, 2^121650113 is an apocalyptic number.

121650113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121650113 is a deficient number, since it is larger than the sum of its proper divisors (17566783).

121650113 is a wasteful number, since it uses less digits than its factorization.

121650113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 121650113 is about 11029.5110045731. The cubic root of 121650113 is about 495.4929796038.

The spelling of 121650113 in words is "one hundred twenty-one million, six hundred fifty thousand, one hundred thirteen".