101234505 has 32 divisors (see below), whose sum is σ = 170760960. Its totient is φ = 51134720.

The previous prime is 101234491. The next prime is 101234531. The reversal of 101234505 is 505432101.

It is not a de Polignac number, because 101234505 - 2⁷ = 101234377 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20860 + ... + 25250.

It is an arithmetic number, because the mean of its divisors is an integer number (5336280).

Almost surely, 2^101234505 is an apocalyptic number.

101234505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101234505 is a deficient number, since it is larger than the sum of its proper divisors (69526455).

101234505 is a wasteful number, since it uses less digits than its factorization.

101234505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 101234505 is about 10061.5359165487. The cubic root of 101234505 is about 466.0610985973.

Adding to 101234505 its reverse (505432101), we get a palindrome (606666606).

The spelling of 101234505 in words is "one hundred one million, two hundred thirty-four thousand, five hundred five".