2101361247 has 6 divisors (see below), whose sum is σ = 3035299592. Its totient is φ = 1400907492.

The previous prime is 2101361243. The next prime is 2101361261. The reversal of 2101361247 is 7421631012.

2101361247 is a `hidden beast` number, since 2 + 1 + 0 + 1 + 3 + 612 + 47 = 666.

It is not a de Polignac number, because 2101361247 - 2² = 2101361243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2101361247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101361243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116742283 + ... + 116742300.

Almost surely, 2^2101361247 is an apocalyptic number.

2101361247 is a deficient number, since it is larger than the sum of its proper divisors (933938345).

2101361247 is a wasteful number, since it uses less digits than its factorization.

2101361247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233484589 (or 233484586 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2101361247 is about 45840.6069658769. The cubic root of 2101361247 is about 1280.8558011828.

Adding to 2101361247 its reverse (7421631012), we get a palindrome (9522992259).

The spelling of 2101361247 in words is "two billion, one hundred one million, three hundred sixty-one thousand, two hundred forty-seven".