30144022121 has 4 divisors (see below), whose sum is σ = 30145382544. Its totient is φ = 30142661700.

The previous prime is 30144022081. The next prime is 30144022171. The reversal of 30144022121 is 12122044103.

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: 12122044103 = 13 ⋅932464931.

It is a cyclic number.

It is not a de Polignac number, because 30144022121 - 2¹⁴ = 30144005737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30144022093 and 30144022102.

It is not an unprimeable number, because it can be changed into a prime (30144022171) 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, 646415 + ... + 691476.

It is an arithmetic number, because the mean of its divisors is an integer number (7536345636).

Almost surely, 2^30144022121 is an apocalyptic number.

It is an amenable number.

30144022121 is a deficient number, since it is larger than the sum of its proper divisors (1360423).

30144022121 is a wasteful number, since it uses less digits than its factorization.

30144022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360422.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 30144022121 its reverse (12122044103), we get a palindrome (42266066224).

The spelling of 30144022121 in words is "thirty billion, one hundred forty-four million, twenty-two thousand, one hundred twenty-one".