2101012319 has 4 divisors (see below), whose sum is σ = 2401156944. Its totient is φ = 1800867696.

The previous prime is 2101012307. The next prime is 2101012351. The reversal of 2101012319 is 9132101012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2101012319 - 2²⁴ = 2084235103 is a prime.

It is a super-2 number, since 2×2101012319² = 8828505529179515522, which contains 22 as substring.

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 2101012319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101012019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150072302 + ... + 150072315.

It is an arithmetic number, because the mean of its divisors is an integer number (600289236).

Almost surely, 2^2101012319 is an apocalyptic number.

2101012319 is a deficient number, since it is larger than the sum of its proper divisors (300144625).

2101012319 is an equidigital number, since it uses as much as digits as its factorization.

2101012319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300144624.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 2101012319 is about 45836.8009245846. The cubic root of 2101012319 is about 1280.7849025065.

The spelling of 2101012319 in words is "two billion, one hundred one million, twelve thousand, three hundred nineteen".