2101510884091 has 2 divisors, whose sum is σ = 2101510884092. Its totient is φ = 2101510884090.

The previous prime is 2101510884071. The next prime is 2101510884119. The reversal of 2101510884091 is 1904880151012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101510884091 - 2³¹ = 2099363400443 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101510884041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050755442045 + 1050755442046.

It is an arithmetic number, because the mean of its divisors is an integer number (1050755442046).

Almost surely, 2^{2101510884091} is an apocalyptic number.

2101510884091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101510884091 is an equidigital number, since it uses as much as digits as its factorization.

2101510884091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 40.

The spelling of 2101510884091 in words is "two trillion, one hundred one billion, five hundred ten million, eight hundred eighty-four thousand, ninety-one".