30281369128201 has 3 divisors (see below), whose sum is σ = 30281374631053. Its totient is φ = 30281363625350.

The previous prime is 30281369128159. The next prime is 30281369128259. The reversal of 30281369128201 is 10282196318203.

The square root of 30281369128201 is 5502851.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 30281369128201 - 2¹¹ = 30281369126153 is a prime.

It is a super-2 number, since 2×30281369128201² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30281369128291) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2751426 + ... + 8254276.

Almost surely, 2^{30281369128201} is an apocalyptic number.

30281369128201 is the 5502851-st square number.

30281369128201 is the 2751426-th centered octagonal number.

It is an amenable number.

30281369128201 is a deficient number, since it is larger than the sum of its proper divisors (5502852).

30281369128201 is an frugal number, since it uses more digits than its factorization.

30281369128201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11005702 (or 5502851 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 30281369128201 in words is "thirty trillion, two hundred eighty-one billion, three hundred sixty-nine million, one hundred twenty-eight thousand, two hundred one".