121552203 has 4 divisors (see below), whose sum is σ = 162069608. Its totient is φ = 81034800.

The previous prime is 121552183. The next prime is 121552241. The reversal of 121552203 is 302255121.

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

It is not a de Polignac number, because 121552203 - 2¹³ = 121544011 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 121552203.

It is not an unprimeable number, because it can be changed into a prime (121552243) 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, 20258698 + ... + 20258703.

It is an arithmetic number, because the mean of its divisors is an integer number (40517402).

Almost surely, 2^121552203 is an apocalyptic number.

121552203 is a deficient number, since it is larger than the sum of its proper divisors (40517405).

121552203 is an equidigital number, since it uses as much as digits as its factorization.

121552203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40517404.

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

The square root of 121552203 is about 11025.0715643936. The cubic root of 121552203 is about 495.3600115430.

The spelling of 121552203 in words is "one hundred twenty-one million, five hundred fifty-two thousand, two hundred three".