100231234 has 4 divisors (see below), whose sum is σ = 150346854. Its totient is φ = 50115616.

The previous prime is 100231231. The next prime is 100231249. The reversal of 100231234 is 432132001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 78375609 + 21855625 = 8853^2 + 4675^2 .

It is not an unprimeable number, because it can be changed into a prime (100231231) 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 as a sum of consecutive naturals, namely, 25057807 + ... + 25057810.

Almost surely, 2^100231234 is an apocalyptic number.

100231234 is a deficient number, since it is larger than the sum of its proper divisors (50115620).

100231234 is an equidigital number, since it uses as much as digits as its factorization.

100231234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50115619.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 100231234 is about 10011.5550240709. Note that the first 3 decimals coincide. The cubic root of 100231234 is about 464.5163723415.

Adding to 100231234 its reverse (432132001), we get a palindrome (532363235).

It can be divided in two parts, 100 and 231234, that multiplied together give a triangular number (23123400 = T₆₈₀₀).

The spelling of 100231234 in words is "one hundred million, two hundred thirty-one thousand, two hundred thirty-four".