15030454121 has 4 divisors (see below), whose sum is σ = 15145190544. Its totient is φ = 14915717700.

The previous prime is 15030454111. The next prime is 15030454133. The reversal of 15030454121 is 12145403051.

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: 12145403051 = 59 ⋅205854289.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15030454121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15030454111) 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, 57368015 + ... + 57368276.

It is an arithmetic number, because the mean of its divisors is an integer number (3786297636).

Almost surely, 2^15030454121 is an apocalyptic number.

It is an amenable number.

15030454121 is a deficient number, since it is larger than the sum of its proper divisors (114736423).

15030454121 is a wasteful number, since it uses less digits than its factorization.

15030454121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114736422.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 15030454121 its reverse (12145403051), we get a palindrome (27175857172).

The spelling of 15030454121 in words is "fifteen billion, thirty million, four hundred fifty-four thousand, one hundred twenty-one".