30233020121 has 4 divisors (see below), whose sum is σ = 30235778832. Its totient is φ = 30230261412.

The previous prime is 30233020009. The next prime is 30233020159. The reversal of 30233020121 is 12102033203.

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: 12102033203 = 13 ⋅930925631.

It is a cyclic number.

It is not a de Polignac number, because 30233020121 - 2²² = 30228825817 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 30233020121.

It is not an unprimeable number, because it can be changed into a prime (30233020721) 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, 1362851 + ... + 1384856.

It is an arithmetic number, because the mean of its divisors is an integer number (7558944708).

Almost surely, 2^30233020121 is an apocalyptic number.

It is an amenable number.

30233020121 is a deficient number, since it is larger than the sum of its proper divisors (2758711).

30233020121 is a wasteful number, since it uses less digits than its factorization.

30233020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758710.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30233020121 its reverse (12102033203), we get a palindrome (42335053324).

The spelling of 30233020121 in words is "thirty billion, two hundred thirty-three million, twenty thousand, one hundred twenty-one".