30201013123121 has 8 divisors (see below), whose sum is σ = 31977660905064. Its totient is φ = 28424378407680.

The previous prime is 30201013123117. The next prime is 30201013123199. The reversal of 30201013123121 is 12132131010203.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12527069209600 + 17673943913521 = 3539360^2 + 4204039^2 .

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 30201013123121 - 2² = 30201013123117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30201013123093 and 30201013123102.

It is not an unprimeable number, because it can be changed into a prime (30201013123111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1708511 + ... + 7957451.

It is an arithmetic number, because the mean of its divisors is an integer number (3997207613133).

Almost surely, 2^{30201013123121} is an apocalyptic number.

It is an amenable number.

30201013123121 is a deficient number, since it is larger than the sum of its proper divisors (1776647781943).

30201013123121 is a wasteful number, since it uses less digits than its factorization.

30201013123121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6533251.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 30201013123121 its reverse (12132131010203), we get a palindrome (42333144133324).

The spelling of 30201013123121 in words is "thirty trillion, two hundred one billion, thirteen million, one hundred twenty-three thousand, one hundred twenty-one".