101420023 has 4 divisors (see below), whose sum is σ = 101441080. Its totient is φ = 101398968.

The previous prime is 101420017. The next prime is 101420027. The reversal of 101420023 is 320024101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320024101 = 11527 ⋅27763.

It is a cyclic number.

It is not a de Polignac number, because 101420023 - 2⁵ = 101419991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101419985 and 101420012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101420027) 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, 661 + ... + 14257.

It is an arithmetic number, because the mean of its divisors is an integer number (25360270).

Almost surely, 2^101420023 is an apocalyptic number.

101420023 is a deficient number, since it is larger than the sum of its proper divisors (21057).

101420023 is an equidigital number, since it uses as much as digits as its factorization.

101420023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21056.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 101420023 is about 10070.7508657498. The cubic root of 101420023 is about 466.3456193762.

Adding to 101420023 its reverse (320024101), we get a palindrome (421444124).

The spelling of 101420023 in words is "one hundred one million, four hundred twenty thousand, twenty-three".