101230215 has 16 divisors (see below), whose sum is σ = 162269568. Its totient is φ = 53889056.

The previous prime is 101230211. The next prime is 101230219. The reversal of 101230215 is 512032101.

It is an interprime number because it is at equal distance from previous prime (101230211) and next prime (101230219).

It is a cyclic number.

It is not a de Polignac number, because 101230215 - 2² = 101230211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 101230194 and 101230203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101230211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2452 + ... + 14438.

It is an arithmetic number, because the mean of its divisors is an integer number (10141848).

Almost surely, 2^101230215 is an apocalyptic number.

101230215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

101230215 is a deficient number, since it is larger than the sum of its proper divisors (61039353).

101230215 is a wasteful number, since it uses less digits than its factorization.

101230215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12558.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 101230215 is about 10061.3227261628. The cubic root of 101230215 is about 466.0545151030.

Adding to 101230215 its reverse (512032101), we get a palindrome (613262316).

The spelling of 101230215 in words is "one hundred one million, two hundred thirty thousand, two hundred fifteen".