121041204203 has 4 divisors (see below), whose sum is σ = 122746009968. Its totient is φ = 119336398440.

The previous prime is 121041204199. The next prime is 121041204227. The reversal of 121041204203 is 302402140121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302402140121 = 53 ⋅5705700757.

It is a cyclic number.

It is not a de Polignac number, because 121041204203 - 2² = 121041204199 is a prime.

It is a super-2 number, since 2×121041204203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121041204253) 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, 852402776 + ... + 852402917.

It is an arithmetic number, because the mean of its divisors is an integer number (30686502492).

Almost surely, 2^121041204203 is an apocalyptic number.

121041204203 is a deficient number, since it is larger than the sum of its proper divisors (1704805765).

121041204203 is an equidigital number, since it uses as much as digits as its factorization.

121041204203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704805764.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 121041204203 its reverse (302402140121), we get a palindrome (423443344324).

The spelling of 121041204203 in words is "one hundred twenty-one billion, forty-one million, two hundred four thousand, two hundred three".