30231020053 has 4 divisors (see below), whose sum is σ = 32556483148. Its totient is φ = 27905556960.

The previous prime is 30231020021. The next prime is 30231020059. The reversal of 30231020053 is 35002013203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35002013203 = 23 ⋅1521826661.

It can be written as a sum of positive squares in 2 ways, for example, as 20055657924 + 10175362129 = 141618^2 + 100873^2 .

It is a cyclic number.

It is not a de Polignac number, because 30231020053 - 2⁵ = 30231020021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30231020053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231020059) 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, 1162731528 + ... + 1162731553.

It is an arithmetic number, because the mean of its divisors is an integer number (8139120787).

Almost surely, 2^30231020053 is an apocalyptic number.

It is an amenable number.

30231020053 is a deficient number, since it is larger than the sum of its proper divisors (2325463095).

30231020053 is a wasteful number, since it uses less digits than its factorization.

30231020053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325463094.

The product of its (nonzero) digits is 540, while the sum is 19.

Adding to 30231020053 its reverse (35002013203), we get a palindrome (65233033256).

The spelling of 30231020053 in words is "thirty billion, two hundred thirty-one million, twenty thousand, fifty-three".