102143011 has 2 divisors, whose sum is σ = 102143012. Its totient is φ = 102143010.

The previous prime is 102143009. The next prime is 102143029. The reversal of 102143011 is 110341201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102143011 - 2¹ = 102143009 is a prime.

It is a super-2 number, since 2×102143011² = 20866389392292242, which contains 22 as substring.

Together with 102143009, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 102142982 and 102143000.

It is not a weakly prime, because it can be changed into another prime (102143081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51071505 + 51071506.

It is an arithmetic number, because the mean of its divisors is an integer number (51071506).

Almost surely, 2^102143011 is an apocalyptic number.

102143011 is a deficient number, since it is larger than the sum of its proper divisors (1).

102143011 is an equidigital number, since it uses as much as digits as its factorization.

102143011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 102143011 is about 10106.5825579174. The cubic root of 102143011 is about 467.4511350453.

Adding to 102143011 its reverse (110341201), we get a palindrome (212484212).

It can be divided in two parts, 10214 and 3011, that added together give a square (13225 = 115²).

The spelling of 102143011 in words is "one hundred two million, one hundred forty-three thousand, eleven".