2101351560 has 128 divisors (see below), whose sum is σ = 7859635200. Its totient is φ = 436642560.

The previous prime is 2101351559. The next prime is 2101351601. The reversal of 2101351560 is 651531012.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2101351560.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104470 + ... + 122949.

It is an arithmetic number, because the mean of its divisors is an integer number (61403400).

Almost surely, 2^2101351560 is an apocalyptic number.

2101351560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101351560 is an abundant number, since it is smaller than the sum of its proper divisors (5758283640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2101351560 is a wasteful number, since it uses less digits than its factorization.

2101351560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227451 (or 227447 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 2101351560 is about 45840.5013061594. The cubic root of 2101351560 is about 1280.8538329873.

Adding to 2101351560 its reverse (651531012), we get a palindrome (2752882572).

The spelling of 2101351560 in words is "two billion, one hundred one million, three hundred fifty-one thousand, five hundred sixty".