101012143 has 2 divisors, whose sum is σ = 101012144. Its totient is φ = 101012142.

The previous prime is 101012141. The next prime is 101012161. The reversal of 101012143 is 341210101.

It is a weak prime.

It is an emirp because it is prime and its reverse (341210101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101012143 - 2¹ = 101012141 is a prime.

Together with 101012141, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101012141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50506071 + 50506072.

It is an arithmetic number, because the mean of its divisors is an integer number (50506072).

Almost surely, 2^101012143 is an apocalyptic number.

101012143 is a deficient number, since it is larger than the sum of its proper divisors (1).

101012143 is an equidigital number, since it uses as much as digits as its factorization.

101012143 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 101012143 is about 10050.4797397935. The cubic root of 101012143 is about 465.7196134207.

Adding to 101012143 its reverse (341210101), we get a palindrome (442222244).

The spelling of 101012143 in words is "one hundred one million, twelve thousand, one hundred forty-three".