101123023 has 4 divisors (see below), whose sum is σ = 104385088. Its totient is φ = 97860960.

The previous prime is 101123017. The next prime is 101123027. The reversal of 101123023 is 320321101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101123023 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 101122994 and 101123012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101123027) 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 in 3 ways as a sum of consecutive naturals, for example, 1630986 + ... + 1631047.

It is an arithmetic number, because the mean of its divisors is an integer number (26096272).

Almost surely, 2^101123023 is an apocalyptic number.

101123023 is a deficient number, since it is larger than the sum of its proper divisors (3262065).

101123023 is an equidigital number, since it uses as much as digits as its factorization.

101123023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262064.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 101123023 is about 10055.9943814622. The cubic root of 101123023 is about 465.8899563326.

Adding to 101123023 its reverse (320321101), we get a palindrome (421444124).

The spelling of 101123023 in words is "one hundred one million, one hundred twenty-three thousand, twenty-three".