101223405 has 16 divisors (see below), whose sum is σ = 179952960. Its totient is φ = 53985744.

The previous prime is 101223403. The next prime is 101223407. The reversal of 101223405 is 504322101.

It is an interprime number because it is at equal distance from previous prime (101223403) and next prime (101223407).

It is not a de Polignac number, because 101223405 - 2¹ = 101223403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101223403) 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 15 ways as a sum of consecutive naturals, for example, 374767 + ... + 375036.

It is an arithmetic number, because the mean of its divisors is an integer number (11247060).

Almost surely, 2^101223405 is an apocalyptic number.

101223405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101223405 is a deficient number, since it is larger than the sum of its proper divisors (78729555).

101223405 is an equidigital number, since it uses as much as digits as its factorization.

101223405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749817 (or 749811 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 101223405 is about 10060.9842957834. The cubic root of 101223405 is about 466.0440639993.

Adding to 101223405 its reverse (504322101), we get a palindrome (605545506).

The spelling of 101223405 in words is "one hundred one million, two hundred twenty-three thousand, four hundred five".