101242203423 has 4 divisors (see below), whose sum is σ = 134989604568. Its totient is φ = 67494802280.

The previous prime is 101242203407. The next prime is 101242203449. The reversal of 101242203423 is 324302242101.

It is a happy number.

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 101242203423 - 2⁴ = 101242203407 is a prime.

It is a super-2 number, since 2×101242203423² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101242203393 and 101242203402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101242203473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16873700568 + ... + 16873700573.

It is an arithmetic number, because the mean of its divisors is an integer number (33747401142).

Almost surely, 2^101242203423 is an apocalyptic number.

101242203423 is a deficient number, since it is larger than the sum of its proper divisors (33747401145).

101242203423 is an equidigital number, since it uses as much as digits as its factorization.

101242203423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33747401144.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 101242203423 its reverse (324302242101), we get a palindrome (425544445524).

The spelling of 101242203423 in words is "one hundred one billion, two hundred forty-two million, two hundred three thousand, four hundred twenty-three".