2101240555135 has 16 divisors (see below), whose sum is σ = 2663992719360. Its totient is φ = 1586642683680.

The previous prime is 2101240555111. The next prime is 2101240555147. The reversal of 2101240555135 is 5315550421012.

It is a de Polignac number, because none of the positive numbers 2^k-2101240555135 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2101240555135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40782967 + ... + 40834456.

It is an arithmetic number, because the mean of its divisors is an integer number (166499544960).

Almost surely, 2^{2101240555135} is an apocalyptic number.

2101240555135 is a deficient number, since it is larger than the sum of its proper divisors (562752164225).

2101240555135 is a wasteful number, since it uses less digits than its factorization.

2101240555135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81617718.

The product of its (nonzero) digits is 30000, while the sum is 34.

Adding to 2101240555135 its reverse (5315550421012), we get a palindrome (7416790976147).

The spelling of 2101240555135 in words is "two trillion, one hundred one billion, two hundred forty million, five hundred fifty-five thousand, one hundred thirty-five".