101323091 has 4 divisors (see below), whose sum is σ = 101376072. Its totient is φ = 101270112.

The previous prime is 101323069. The next prime is 101323133. The reversal of 101323091 is 190323101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101323091 - 2²⁶ = 34214227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101323031) 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, 23510 + ... + 27483.

It is an arithmetic number, because the mean of its divisors is an integer number (25344018).

Almost surely, 2^101323091 is an apocalyptic number.

101323091 is a deficient number, since it is larger than the sum of its proper divisors (52981).

101323091 is an equidigital number, since it uses as much as digits as its factorization.

101323091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52980.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 101323091 is about 10065.9371645168. The cubic root of 101323091 is about 466.1970023640.

Adding to 101323091 its reverse (190323101), we get a palindrome (291646192).

The spelling of 101323091 in words is "one hundred one million, three hundred twenty-three thousand, ninety-one".