121104253 has 4 divisors (see below), whose sum is σ = 121317660. Its totient is φ = 120890848.

The previous prime is 121104251. The next prime is 121104287. The reversal of 121104253 is 352401121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57790404 + 63313849 = 7602^2 + 7957^2 .

It is a cyclic number.

It is not a de Polignac number, because 121104253 - 2¹ = 121104251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121104253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121104251) 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, 105850 + ... + 106987.

It is an arithmetic number, because the mean of its divisors is an integer number (30329415).

Almost surely, 2^121104253 is an apocalyptic number.

It is an amenable number.

121104253 is a deficient number, since it is larger than the sum of its proper divisors (213407).

121104253 is an equidigital number, since it uses as much as digits as its factorization.

121104253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213406.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 121104253 is about 11004.7377524410. The cubic root of 121104253 is about 494.7507543615.

Adding to 121104253 its reverse (352401121), we get a palindrome (473505374).

The spelling of 121104253 in words is "one hundred twenty-one million, one hundred four thousand, two hundred fifty-three".