10202143243 has 4 divisors (see below), whose sum is σ = 10202625928. Its totient is φ = 10201660560.

The previous prime is 10202143229. The next prime is 10202143249. The reversal of 10202143243 is 34234120201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34234120201 = 21227 ⋅1612763.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10202143243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10202143249) 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, 208113 + ... + 252418.

It is an arithmetic number, because the mean of its divisors is an integer number (2550656482).

Almost surely, 2^10202143243 is an apocalyptic number.

10202143243 is a deficient number, since it is larger than the sum of its proper divisors (482685).

10202143243 is an equidigital number, since it uses as much as digits as its factorization.

10202143243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482684.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 10202143243 its reverse (34234120201), we get a palindrome (44436263444).

The spelling of 10202143243 in words is "ten billion, two hundred two million, one hundred forty-three thousand, two hundred forty-three".