121533023 has 8 divisors (see below), whose sum is σ = 125072640. Its totient is φ = 118033240.

The previous prime is 121533001. The next prime is 121533029. The reversal of 121533023 is 320335121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121533023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121532986 and 121533004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121533029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3713 + ... + 16026.

It is an arithmetic number, because the mean of its divisors is an integer number (15634080).

Almost surely, 2^121533023 is an apocalyptic number.

121533023 is a deficient number, since it is larger than the sum of its proper divisors (3539617).

121533023 is a wasteful number, since it uses less digits than its factorization.

121533023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19917.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 121533023 is about 11024.2016944539. The cubic root of 121533023 is about 495.3339555096. Note that the first 3 decimals are identical.

Adding to 121533023 its reverse (320335121), we get a palindrome (441868144).

The spelling of 121533023 in words is "one hundred twenty-one million, five hundred thirty-three thousand, twenty-three".