121452103 has 4 divisors (see below), whose sum is σ = 123162768. Its totient is φ = 119741440.

The previous prime is 121452101. The next prime is 121452113. The reversal of 121452103 is 301254121.

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

It is a cyclic number.

It is not a de Polignac number, because 121452103 - 2¹ = 121452101 is a prime.

It is a super-2 number, since 2×121452103² = 29501226646245218, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121452101) 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, 855226 + ... + 855367.

It is an arithmetic number, because the mean of its divisors is an integer number (30790692).

Almost surely, 2^121452103 is an apocalyptic number.

121452103 is a deficient number, since it is larger than the sum of its proper divisors (1710665).

121452103 is an equidigital number, since it uses as much as digits as its factorization.

121452103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710664.

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

The square root of 121452103 is about 11020.5309763187. The cubic root of 121452103 is about 495.2239954840.

The spelling of 121452103 in words is "one hundred twenty-one million, four hundred fifty-two thousand, one hundred three".