30020123201 has 4 divisors (see below), whose sum is σ = 30988514304. Its totient is φ = 29051732100.

The previous prime is 30020123171. The next prime is 30020123209. The reversal of 30020123201 is 10232102003.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10232102003 = 1583 ⋅6463741.

It is a cyclic number.

It is not a de Polignac number, because 30020123201 - 2⁶ = 30020123137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30020123209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484195505 + ... + 484195566.

It is an arithmetic number, because the mean of its divisors is an integer number (7747128576).

Almost surely, 2^30020123201 is an apocalyptic number.

30020123201 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30020123201 is a deficient number, since it is larger than the sum of its proper divisors (968391103).

30020123201 is an equidigital number, since it uses as much as digits as its factorization.

30020123201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968391102.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30020123201 its reverse (10232102003), we get a palindrome (40252225204).

The spelling of 30020123201 in words is "thirty billion, twenty million, one hundred twenty-three thousand, two hundred one".