2113020073 has 2 divisors, whose sum is σ = 2113020074. Its totient is φ = 2113020072.

The previous prime is 2113020023. The next prime is 2113020089. The reversal of 2113020073 is 3700203112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1475558569 + 637461504 = 38413^2 + 25248^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113020073 - 2¹³ = 2113011881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2113020073.

It is not a weakly prime, because it can be changed into another prime (2113020023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056510036 + 1056510037.

It is an arithmetic number, because the mean of its divisors is an integer number (1056510037).

Almost surely, 2^2113020073 is an apocalyptic number.

It is an amenable number.

2113020073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113020073 is an equidigital number, since it uses as much as digits as its factorization.

2113020073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 2113020073 is about 45967.5980773414. The cubic root of 2113020073 is about 1283.2202593052.

Adding to 2113020073 its reverse (3700203112), we get a palindrome (5813223185).

The spelling of 2113020073 in words is "two billion, one hundred thirteen million, twenty thousand, seventy-three".