121323525 has 12 divisors (see below), whose sum is σ = 200588352. Its totient is φ = 64705840.

The previous prime is 121323487. The next prime is 121323541. The reversal of 121323525 is 525323121.

It is a happy number.

It is not a de Polignac number, because 121323525 - 2¹⁰ = 121322501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121323495 and 121323504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 808749 + ... + 808898.

It is an arithmetic number, because the mean of its divisors is an integer number (16715696).

Almost surely, 2^121323525 is an apocalyptic number.

121323525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121323525 is a deficient number, since it is larger than the sum of its proper divisors (79264827).

121323525 is a wasteful number, since it uses less digits than its factorization.

121323525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617660 (or 1617655 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 121323525 is about 11014.6958650704. The cubic root of 121323525 is about 495.0491737701.

Adding to 121323525 its reverse (525323121), we get a palindrome (646646646).

The spelling of 121323525 in words is "one hundred twenty-one million, three hundred twenty-three thousand, five hundred twenty-five".