101423785 has 32 divisors (see below), whose sum is σ = 135419904. Its totient is φ = 72576000.

The previous prime is 101423783. The next prime is 101423789. The reversal of 101423785 is 587324101.

It is not a de Polignac number, because 101423785 - 2¹ = 101423783 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (101423783) 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 31 ways as a sum of consecutive naturals, for example, 160420 + ... + 161050.

It is an arithmetic number, because the mean of its divisors is an integer number (4231872).

Almost surely, 2^101423785 is an apocalyptic number.

It is an amenable number.

101423785 is a deficient number, since it is larger than the sum of its proper divisors (33996119).

101423785 is a wasteful number, since it uses less digits than its factorization.

101423785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 101423785 is about 10070.9376425435. The cubic root of 101423785 is about 466.3513853991.

Adding to 101423785 its reverse (587324101), we get a palindrome (688747886).

The spelling of 101423785 in words is "one hundred one million, four hundred twenty-three thousand, seven hundred eighty-five".