101243434 has 4 divisors (see below), whose sum is σ = 151865154. Its totient is φ = 50621716.

The previous prime is 101243413. The next prime is 101243453. The reversal of 101243434 is 434342101.

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., 101062809 + 180625 = 10053^2 + 425^2 .

It is a super-2 number, since 2×101243434² = 20500465856224712, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 25310857 + ... + 25310860.

Almost surely, 2^101243434 is an apocalyptic number.

101243434 is a deficient number, since it is larger than the sum of its proper divisors (50621720).

101243434 is an equidigital number, since it uses as much as digits as its factorization.

101243434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50621719.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 101243434 is about 10061.9796262962. The cubic root of 101243434 is about 466.0748005698.

Adding to 101243434 its reverse (434342101), we get a palindrome (535585535).

The spelling of 101243434 in words is "one hundred one million, two hundred forty-three thousand, four hundred thirty-four".