2101514000491 has 2 divisors, whose sum is σ = 2101514000492. Its totient is φ = 2101514000490.

The previous prime is 2101514000483. The next prime is 2101514000539. The reversal of 2101514000491 is 1940004151012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101514000491 - 2³ = 2101514000483 is a prime.

It is a super-2 number, since 2×2101514000491² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2101514000431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050757000245 + 1050757000246.

It is an arithmetic number, because the mean of its divisors is an integer number (1050757000246).

Almost surely, 2^{2101514000491} is an apocalyptic number.

2101514000491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101514000491 is an equidigital number, since it uses as much as digits as its factorization.

2101514000491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 28.

The spelling of 2101514000491 in words is "two trillion, one hundred one billion, five hundred fourteen million, four hundred ninety-one", and thus it is an aban number.