30201020133123 has 32 divisors (see below), whose sum is σ = 46092509346816. Its totient is φ = 17230764515328.

The previous prime is 30201020133059. The next prime is 30201020133157. The reversal of 30201020133123 is 32133102010203.

It is not a de Polignac number, because 30201020133123 - 2⁶ = 30201020133059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 30201020133123.

It is not an unprimeable number, because it can be changed into a prime (30201020133223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202408915 + ... + 202558067.

It is an arithmetic number, because the mean of its divisors is an integer number (1440390917088).

Almost surely, 2^{30201020133123} is an apocalyptic number.

30201020133123 is a deficient number, since it is larger than the sum of its proper divisors (15891489213693).

30201020133123 is a wasteful number, since it uses less digits than its factorization.

30201020133123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164163.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 30201020133123 its reverse (32133102010203), we get a palindrome (62334122143326).

The spelling of 30201020133123 in words is "thirty trillion, two hundred one billion, twenty million, one hundred thirty-three thousand, one hundred twenty-three".