30120144033 has 56 divisors (see below), whose sum is σ = 47655630400. Its totient is φ = 16917253920.

The previous prime is 30120143981. The next prime is 30120144083. The reversal of 30120144033 is 33044102103.

It is not a de Polignac number, because 30120144033 - 2²⁴ = 30103366817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120144083) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 21529068 + ... + 21530466.

It is an arithmetic number, because the mean of its divisors is an integer number (850993400).

Almost surely, 2^30120144033 is an apocalyptic number.

It is an amenable number.

30120144033 is a deficient number, since it is larger than the sum of its proper divisors (17535486367).

30120144033 is an frugal number, since it uses more digits than its factorization.

30120144033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505 (or 1470 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30120144033 its reverse (33044102103), we get a palindrome (63164246136).

The spelling of 30120144033 in words is "thirty billion, one hundred twenty million, one hundred forty-four thousand, thirty-three".