121203442013 has 8 divisors (see below), whose sum is σ = 127613976000. Its totient is φ = 114796048608.

The previous prime is 121203442007. The next prime is 121203442021. The reversal of 121203442013 is 310244302121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121203442013 - 2²² = 121199247709 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 121203442013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121203442093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705713 + ... + 860486.

It is an arithmetic number, because the mean of its divisors is an integer number (15951747000).

Almost surely, 2^121203442013 is an apocalyptic number.

It is an amenable number.

121203442013 is a deficient number, since it is larger than the sum of its proper divisors (6410533987).

121203442013 is a wasteful number, since it uses less digits than its factorization.

121203442013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570291.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 121203442013 its reverse (310244302121), we get a palindrome (431447744134).

The spelling of 121203442013 in words is "one hundred twenty-one billion, two hundred three million, four hundred forty-two thousand, thirteen".