30143204121 has 16 divisors (see below), whose sum is σ = 41151644864. Its totient is φ = 19615708224.

The previous prime is 30143204111. The next prime is 30143204131. The reversal of 30143204121 is 12140234103.

It is an interprime number because it is at equal distance from previous prime (30143204111) and next prime (30143204131).

It is not a de Polignac number, because 30143204121 - 2³⁰ = 29069462297 is a prime.

It is a super-2 number, since 2×30143204121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30143204111) 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, 132855 + ... + 279171.

It is an arithmetic number, because the mean of its divisors is an integer number (2571977804).

Almost surely, 2^30143204121 is an apocalyptic number.

It is an amenable number.

30143204121 is a deficient number, since it is larger than the sum of its proper divisors (11008440743).

30143204121 is a wasteful number, since it uses less digits than its factorization.

30143204121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147960.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 30143204121 its reverse (12140234103), we get a palindrome (42283438224).

The spelling of 30143204121 in words is "thirty billion, one hundred forty-three million, two hundred four thousand, one hundred twenty-one".