101205040045 has 16 divisors (see below), whose sum is σ = 128126571840. Its totient is φ = 76529591424.

The previous prime is 101205040031. The next prime is 101205040099. The reversal of 101205040045 is 540040502101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101205040045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101205039998 and 101205040025.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1160304 + ... + 1244473.

It is an arithmetic number, because the mean of its divisors is an integer number (8007910740).

Almost surely, 2^101205040045 is an apocalyptic number.

It is an amenable number.

101205040045 is a deficient number, since it is larger than the sum of its proper divisors (26921531795).

101205040045 is a wasteful number, since it uses less digits than its factorization.

101205040045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405244.

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 101205040045 its reverse (540040502101), we get a palindrome (641245542146).

The spelling of 101205040045 in words is "one hundred one billion, two hundred five million, forty thousand, forty-five".