101163530021 has 4 divisors (see below), whose sum is σ = 102588368544. Its totient is φ = 99738691500.

The previous prime is 101163529967. The next prime is 101163530033. The reversal of 101163530021 is 120035361101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101163530021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101163530071) 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, 712419155 + ... + 712419296.

It is an arithmetic number, because the mean of its divisors is an integer number (25647092136).

Almost surely, 2^101163530021 is an apocalyptic number.

It is an amenable number.

101163530021 is a deficient number, since it is larger than the sum of its proper divisors (1424838523).

101163530021 is an equidigital number, since it uses as much as digits as its factorization.

101163530021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424838522.

The product of its (nonzero) digits is 540, while the sum is 23.

Adding to 101163530021 its reverse (120035361101), we get a palindrome (221198891122).

The spelling of 101163530021 in words is "one hundred one billion, one hundred sixty-three million, five hundred thirty thousand, twenty-one".