1202543143 has 2 divisors, whose sum is σ = 1202543144. Its totient is φ = 1202543142.

The previous prime is 1202543141. The next prime is 1202543171. The reversal of 1202543143 is 3413452021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1202543143 - 2¹ = 1202543141 is a prime.

It is a super-2 number, since 2×1202543143² = 2892220021552636898, which contains 22 as substring.

Together with 1202543141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202543141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601271571 + 601271572.

It is an arithmetic number, because the mean of its divisors is an integer number (601271572).

Almost surely, 2^1202543143 is an apocalyptic number.

1202543143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202543143 is an equidigital number, since it uses as much as digits as its factorization.

1202543143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1202543143 is about 34677.7038311362. The cubic root of 1202543143 is about 1063.4087319126.

Adding to 1202543143 its reverse (3413452021), we get a palindrome (4615995164).

The spelling of 1202543143 in words is "one billion, two hundred two million, five hundred forty-three thousand, one hundred forty-three".