30143173513 has 4 divisors (see below), whose sum is σ = 30200809168. Its totient is φ = 30085537860.

The previous prime is 30143173477. The next prime is 30143173559. The reversal of 30143173513 is 31537134103.

It is a happy number.

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: 31537134103 = 9791 ⋅3221033.

It is a cyclic number.

It is not a de Polignac number, because 30143173513 - 2⁹ = 30143173001 is a prime.

It is a super-2 number, since 2×30143173513² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30143173583) 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, 28817043 + ... + 28818088.

It is an arithmetic number, because the mean of its divisors is an integer number (7550202292).

Almost surely, 2^30143173513 is an apocalyptic number.

It is an amenable number.

30143173513 is a deficient number, since it is larger than the sum of its proper divisors (57635655).

30143173513 is an equidigital number, since it uses as much as digits as its factorization.

30143173513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57635654.

The product of its (nonzero) digits is 11340, while the sum is 31.

The spelling of 30143173513 in words is "thirty billion, one hundred forty-three million, one hundred seventy-three thousand, five hundred thirteen".