121420200013 has 16 divisors (see below), whose sum is σ = 148330941696. Its totient is φ = 97121439360.

The previous prime is 121420200007. The next prime is 121420200061. The reversal of 121420200013 is 310002024121.

It is a cyclic number.

It is not a de Polignac number, because 121420200013 - 2¹³ = 121420191821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121420200013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121420201013) 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 15 ways as a sum of consecutive naturals, for example, 9190506 + ... + 9203707.

It is an arithmetic number, because the mean of its divisors is an integer number (9270683856).

Almost surely, 2^121420200013 is an apocalyptic number.

It is an amenable number.

121420200013 is a deficient number, since it is larger than the sum of its proper divisors (26910741683).

121420200013 is a wasteful number, since it uses less digits than its factorization.

121420200013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18394284.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 121420200013 its reverse (310002024121), we get a palindrome (431422224134).

The spelling of 121420200013 in words is "one hundred twenty-one billion, four hundred twenty million, two hundred thousand, thirteen".