121252503 has 8 divisors (see below), whose sum is σ = 163101168. Its totient is φ = 80119424.

The previous prime is 121252463. The next prime is 121252529. The reversal of 121252503 is 305252121.

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

It is a cyclic number.

It is not a de Polignac number, because 121252503 - 2⁸ = 121252247 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 121252503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121252543) 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, 178500 + ... + 179177.

It is an arithmetic number, because the mean of its divisors is an integer number (20387646).

Almost surely, 2^121252503 is an apocalyptic number.

121252503 is a deficient number, since it is larger than the sum of its proper divisors (41848665).

121252503 is a wasteful number, since it uses less digits than its factorization.

121252503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357793.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 121252503 is about 11011.4714275614. The cubic root of 121252503 is about 494.9525553956.

It can be divided in two parts, 1212 and 52503, that multiplied together give a palindrome (63633636).

The spelling of 121252503 in words is "one hundred twenty-one million, two hundred fifty-two thousand, five hundred three".