121523238 has 12 divisors (see below), whose sum is σ = 263300388. Its totient is φ = 40507740.

The previous prime is 121523231. The next prime is 121523239. The reversal of 121523238 is 832325121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121523231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3375628 + ... + 3375663.

It is an arithmetic number, because the mean of its divisors is an integer number (21941699).

Almost surely, 2^121523238 is an apocalyptic number.

121523238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

121523238 is an abundant number, since it is smaller than the sum of its proper divisors (141777150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121523238 is a wasteful number, since it uses less digits than its factorization.

121523238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6751299 (or 6751296 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 121523238 is about 11023.7578892136. The cubic root of 121523238 is about 495.3206615293.

Adding to 121523238 its reverse (832325121), we get a palindrome (953848359).

The spelling of 121523238 in words is "one hundred twenty-one million, five hundred twenty-three thousand, two hundred thirty-eight".