121300013133205 has 8 divisors (see below), whose sum is σ = 145977093171000. Its totient is φ = 96761958899136.

The previous prime is 121300013133191. The next prime is 121300013133251. The reversal of 121300013133205 is 502331310003121.

It can be written as a sum of positive squares in 4 ways, for example, as 57613580110321 + 63686433022884 = 7590361^2 + 7980378^2 .

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 121300013133205 - 2²¹ = 121300011036053 is a prime.

It is a super-2 number, since 2×121300013133205² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121300013133205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34756449010 + ... + 34756452499.

It is an arithmetic number, because the mean of its divisors is an integer number (18247136646375).

Almost surely, 2^{121300013133205} is an apocalyptic number.

It is an amenable number.

121300013133205 is a deficient number, since it is larger than the sum of its proper divisors (24677080037795).

121300013133205 is an equidigital number, since it uses as much as digits as its factorization.

121300013133205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69512901863.

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 121300013133205 its reverse (502331310003121), we get a palindrome (623631323136326).

The spelling of 121300013133205 in words is "one hundred twenty-one trillion, three hundred billion, thirteen million, one hundred thirty-three thousand, two hundred five".