121324413203 has 4 divisors (see below), whose sum is σ = 138656472240. Its totient is φ = 103992354168.

The previous prime is 121324413187. The next prime is 121324413337. The reversal of 121324413203 is 302314423121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302314423121 = 35059 ⋅8623019.

It is a cyclic number.

It is not a de Polignac number, because 121324413203 - 2⁴ = 121324413187 is a prime.

It is a super-2 number, since 2×121324413203² (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 (121324413103) 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, 8666029508 + ... + 8666029521.

It is an arithmetic number, because the mean of its divisors is an integer number (34664118060).

Almost surely, 2^121324413203 is an apocalyptic number.

121324413203 is a deficient number, since it is larger than the sum of its proper divisors (17332059037).

121324413203 is an equidigital number, since it uses as much as digits as its factorization.

121324413203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17332059036.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 121324413203 its reverse (302314423121), we get a palindrome (423638836324).

The spelling of 121324413203 in words is "one hundred twenty-one billion, three hundred twenty-four million, four hundred thirteen thousand, two hundred three".