121412231103 has 4 divisors (see below), whose sum is σ = 161882974808. Its totient is φ = 80941487400.

The previous prime is 121412231047. The next prime is 121412231117. The reversal of 121412231103 is 301132214121.

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

It is not a de Polignac number, because 121412231103 - 2²⁹ = 120875360191 is a prime.

It is a super-2 number, since 2×121412231103² (a number of 23 digits) contains 22 as substring.

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 121412231103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121412231173) 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, 20235371848 + ... + 20235371853.

It is an arithmetic number, because the mean of its divisors is an integer number (40470743702).

Almost surely, 2^121412231103 is an apocalyptic number.

121412231103 is a deficient number, since it is larger than the sum of its proper divisors (40470743705).

121412231103 is an equidigital number, since it uses as much as digits as its factorization.

121412231103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40470743704.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 121412231103 its reverse (301132214121), we get a palindrome (422544445224).

The spelling of 121412231103 in words is "one hundred twenty-one billion, four hundred twelve million, two hundred thirty-one thousand, one hundred three".