30201111021 has 16 divisors (see below), whose sum is σ = 42391485440. Its totient is φ = 19072603440.

The previous prime is 30201111019. The next prime is 30201111043. The reversal of 30201111021 is 12011110203.

It is not a de Polignac number, because 30201111021 - 2¹ = 30201111019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30201110988 and 30201111006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30201116021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874716 + ... + 908586.

It is an arithmetic number, because the mean of its divisors is an integer number (2649467840).

Almost surely, 2^30201111021 is an apocalyptic number.

It is an amenable number.

30201111021 is a deficient number, since it is larger than the sum of its proper divisors (12190374419).

30201111021 is a wasteful number, since it uses less digits than its factorization.

30201111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49536.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 30201111021 its reverse (12011110203), we get a palindrome (42212221224).

The spelling of 30201111021 in words is "thirty billion, two hundred one million, one hundred eleven thousand, twenty-one".