101235201505 has 8 divisors (see below), whose sum is σ = 121483968552. Its totient is φ = 80987010048.

The previous prime is 101235201451. The next prime is 101235201521. The reversal of 101235201505 is 505102532101.

It can be written as a sum of positive squares in 4 ways, for example, as 6154245601 + 95080955904 = 78449^2 + 308352^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101235201505 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101235201505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529729 + ... + 695041.

It is an arithmetic number, because the mean of its divisors is an integer number (15185496069).

Almost surely, 2^101235201505 is an apocalyptic number.

It is an amenable number.

101235201505 is a deficient number, since it is larger than the sum of its proper divisors (20248767047).

101235201505 is a wasteful number, since it uses less digits than its factorization.

101235201505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287795.

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 101235201505 its reverse (505102532101), we get a palindrome (606337733606).

The spelling of 101235201505 in words is "one hundred one billion, two hundred thirty-five million, two hundred one thousand, five hundred five".