10515422143 has 4 divisors (see below), whose sum is σ = 10759966888. Its totient is φ = 10270877400.

The previous prime is 10515422059. The next prime is 10515422153. The reversal of 10515422143 is 34122451501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10515422143 is a prime.

It is a super-2 number, since 2×10515422143² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10515422153) 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, 122272308 + ... + 122272393.

It is an arithmetic number, because the mean of its divisors is an integer number (2689991722).

Almost surely, 2^10515422143 is an apocalyptic number.

10515422143 is a deficient number, since it is larger than the sum of its proper divisors (244544745).

10515422143 is an equidigital number, since it uses as much as digits as its factorization.

10515422143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244544744.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 10515422143 its reverse (34122451501), we get a palindrome (44637873644).

The spelling of 10515422143 in words is "ten billion, five hundred fifteen million, four hundred twenty-two thousand, one hundred forty-three".