2113213019 has 4 divisors (see below), whose sum is σ = 2115762960. Its totient is φ = 2110663080.

The previous prime is 2113213009. The next prime is 2113213043. The reversal of 2113213019 is 9103123112.

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 2113213019 - 2¹⁶ = 2113147483 is a prime.

It is a super-2 number, since 2×2113213019² = 8931338527342188722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113212985 and 2113213003.

It is not an unprimeable number, because it can be changed into a prime (2113213009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273727 + ... + 1275384.

It is an arithmetic number, because the mean of its divisors is an integer number (528940740).

Almost surely, 2^2113213019 is an apocalyptic number.

2113213019 is a deficient number, since it is larger than the sum of its proper divisors (2549941).

2113213019 is an equidigital number, since it uses as much as digits as its factorization.

2113213019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549940.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 2113213019 is about 45969.6967468788. The cubic root of 2113213019 is about 1283.2593163061.

The spelling of 2113213019 in words is "two billion, one hundred thirteen million, two hundred thirteen thousand, nineteen".