101040042571 has 16 divisors (see below), whose sum is σ = 113098073760. Its totient is φ = 89624747520.

The previous prime is 101040042569. The next prime is 101040042617. The reversal of 101040042571 is 175240040101.

It is a cyclic number.

It is not a de Polignac number, because 101040042571 - 2¹ = 101040042569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101040042511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555550 + ... + 714643.

It is an arithmetic number, because the mean of its divisors is an integer number (7068629610).

Almost surely, 2^101040042571 is an apocalyptic number.

101040042571 is a deficient number, since it is larger than the sum of its proper divisors (12058031189).

101040042571 is a wasteful number, since it uses less digits than its factorization.

101040042571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270446.

The product of its (nonzero) digits is 1120, while the sum is 25.

Adding to 101040042571 its reverse (175240040101), we get a palindrome (276280082672).

The spelling of 101040042571 in words is "one hundred one billion, forty million, forty-two thousand, five hundred seventy-one".