121332042203 has 4 divisors (see below), whose sum is σ = 121333200888. Its totient is φ = 121330883520.

The previous prime is 121332042173. The next prime is 121332042233. The reversal of 121332042203 is 302240233121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302240233121 = 3691 ⋅81885731.

It is an interprime number because it is at equal distance from previous prime (121332042173) and next prime (121332042233).

It is a cyclic number.

It is not a de Polignac number, because 121332042203 - 2¹⁰ = 121332041179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121332042233) 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, 404726 + ... + 637547.

It is an arithmetic number, because the mean of its divisors is an integer number (30333300222).

Almost surely, 2^121332042203 is an apocalyptic number.

121332042203 is a deficient number, since it is larger than the sum of its proper divisors (1158685).

121332042203 is a wasteful number, since it uses less digits than its factorization.

121332042203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158684.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 121332042203 its reverse (302240233121), we get a palindrome (423572275324).

The spelling of 121332042203 in words is "one hundred twenty-one billion, three hundred thirty-two million, forty-two thousand, two hundred three".