2101513499 has 2 divisors, whose sum is σ = 2101513500. Its totient is φ = 2101513498.

The previous prime is 2101513481. The next prime is 2101513511. The reversal of 2101513499 is 9943151012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101513499 - 2¹⁶ = 2101447963 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101513409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050756749 + 1050756750.

It is an arithmetic number, because the mean of its divisors is an integer number (1050756750).

Almost surely, 2^2101513499 is an apocalyptic number.

2101513499 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101513499 is an equidigital number, since it uses as much as digits as its factorization.

2101513499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 2101513499 is about 45842.2676031629. The cubic root of 2101513499 is about 1280.8867348055.

It can be divided in two parts, 2101513 and 499, that added together give a palindrome (2102012).

The spelling of 2101513499 in words is "two billion, one hundred one million, five hundred thirteen thousand, four hundred ninety-nine".