121200300013 has 16 divisors (see below), whose sum is σ = 132018888960. Its totient is φ = 110597976576.

The previous prime is 121200299963. The next prime is 121200300019. The reversal of 121200300013 is 310003002121.

It is a cyclic number.

It is not a de Polignac number, because 121200300013 - 2²¹ = 121198202861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121200299966 and 121200300002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121200300019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1064328 + ... + 1172686.

It is an arithmetic number, because the mean of its divisors is an integer number (8251180560).

Almost surely, 2^121200300013 is an apocalyptic number.

121200300013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121200300013 is a deficient number, since it is larger than the sum of its proper divisors (10818588947).

121200300013 is a wasteful number, since it uses less digits than its factorization.

121200300013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109356.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 121200300013 its reverse (310003002121), we get a palindrome (431203302134).

The spelling of 121200300013 in words is "one hundred twenty-one billion, two hundred million, three hundred thousand, thirteen".