101012238 has 16 divisors (see below), whose sum is σ = 224471760. Its totient is φ = 33670728.

The previous prime is 101012231. The next prime is 101012243. The reversal of 101012238 is 832210101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 101012238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101012231) 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 7 ways as a sum of consecutive naturals, for example, 935245 + ... + 935352.

It is an arithmetic number, because the mean of its divisors is an integer number (14029485).

Almost surely, 2^101012238 is an apocalyptic number.

101012238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

101012238 is an abundant number, since it is smaller than the sum of its proper divisors (123459522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101012238 is a wasteful number, since it uses less digits than its factorization.

101012238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870608 (or 1870602 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 101012238 is about 10050.4844659350. The cubic root of 101012238 is about 465.7197594209.

Adding to 101012238 its reverse (832210101), we get a palindrome (933222339).

The spelling of 101012238 in words is "one hundred one million, twelve thousand, two hundred thirty-eight".