2101315045 has 8 divisors (see below), whose sum is σ = 2527932024. Its totient is φ = 1676816064.

The previous prime is 2101315043. The next prime is 2101315087. The reversal of 2101315045 is 5405131012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1292769 + 2100022276 = 1137^2 + 45826^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2101315045 - 2¹ = 2101315043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101315043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527314 + ... + 531283.

It is an arithmetic number, because the mean of its divisors is an integer number (315991503).

Almost surely, 2^2101315045 is an apocalyptic number.

It is an amenable number.

2101315045 is a deficient number, since it is larger than the sum of its proper divisors (426616979).

2101315045 is a wasteful number, since it uses less digits than its factorization.

2101315045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058999.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2101315045 is about 45840.1030212629. The cubic root of 2101315045 is about 1280.8464138498.

Adding to 2101315045 its reverse (5405131012), we get a palindrome (7506446057).

The spelling of 2101315045 in words is "two billion, one hundred one million, three hundred fifteen thousand, forty-five".