121533383 has 4 divisors (see below), whose sum is σ = 121586808. Its totient is φ = 121479960.

The previous prime is 121533359. The next prime is 121533397. The reversal of 121533383 is 383335121.

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 121533383 - 2⁶ = 121533319 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121533283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23141 + ... + 27902.

It is an arithmetic number, because the mean of its divisors is an integer number (30396702).

Almost surely, 2^121533383 is an apocalyptic number.

121533383 is a deficient number, since it is larger than the sum of its proper divisors (53425).

121533383 is an equidigital number, since it uses as much as digits as its factorization.

121533383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53424.

The product of its digits is 6480, while the sum is 29.

The square root of 121533383 is about 11024.2180221547. The cubic root of 121533383 is about 495.3344445949.

The spelling of 121533383 in words is "one hundred twenty-one million, five hundred thirty-three thousand, three hundred eighty-three".