3123220011 has 4 divisors (see below), whose sum is σ = 4164293352. Its totient is φ = 2082146672.

The previous prime is 3123220003. The next prime is 3123220013. The reversal of 3123220011 is 1100223213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1100223213 = 3 ⋅366741071.

It is a cyclic number.

It is not a de Polignac number, because 3123220011 - 2³ = 3123220003 is a prime.

It is a super-2 number, since 2×3123220011² = 19509006474221680242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3123220013) 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, 520536666 + ... + 520536671.

It is an arithmetic number, because the mean of its divisors is an integer number (1041073338).

Almost surely, 2^3123220011 is an apocalyptic number.

3123220011 is a deficient number, since it is larger than the sum of its proper divisors (1041073341).

3123220011 is a wasteful number, since it uses less digits than its factorization.

3123220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041073340.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3123220011 is about 55885.7764641416. The cubic root of 3123220011 is about 1461.7312313507.

Adding to 3123220011 its reverse (1100223213), we get a palindrome (4223443224).

The spelling of 3123220011 in words is "three billion, one hundred twenty-three million, two hundred twenty thousand, eleven".