2111223013 has 4 divisors (see below), whose sum is σ = 2235412620. Its totient is φ = 1987033408.

The previous prime is 2111223007. The next prime is 2111223017. The reversal of 2111223013 is 3103221112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1326270724 + 784952289 = 36418^2 + 28017^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111223013 - 2²¹ = 2109125861 is a prime.

It is a super-2 number, since 2×2111223013² = 8914525221241596338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111223017) 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, 62094778 + ... + 62094811.

It is an arithmetic number, because the mean of its divisors is an integer number (558853155).

Almost surely, 2^2111223013 is an apocalyptic number.

It is an amenable number.

2111223013 is a deficient number, since it is larger than the sum of its proper divisors (124189607).

2111223013 is a wasteful number, since it uses less digits than its factorization.

2111223013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124189606.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2111223013 is about 45948.0468899386. The cubic root of 2111223013 is about 1282.8563760539.

Adding to 2111223013 its reverse (3103221112), we get a palindrome (5214444125).

The spelling of 2111223013 in words is "two billion, one hundred eleven million, two hundred twenty-three thousand, thirteen".