101742623 has 2 divisors, whose sum is σ = 101742624. Its totient is φ = 101742622.

The previous prime is 101742617. The next prime is 101742631. The reversal of 101742623 is 326247101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101742623 - 2⁶ = 101742559 is a prime.

It is a super-2 number, since 2×101742623² = 20703122669840258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101742592 and 101742601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101742323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50871311 + 50871312.

It is an arithmetic number, because the mean of its divisors is an integer number (50871312).

Almost surely, 2^101742623 is an apocalyptic number.

101742623 is a deficient number, since it is larger than the sum of its proper divisors (1).

101742623 is an equidigital number, since it uses as much as digits as its factorization.

101742623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 101742623 is about 10086.7548299738. The cubic root of 101742623 is about 466.8395516467.

Adding to 101742623 its reverse (326247101), we get a palindrome (427989724).

The spelling of 101742623 in words is "one hundred one million, seven hundred forty-two thousand, six hundred twenty-three".