3120123011 has 4 divisors (see below), whose sum is σ = 3121238952. Its totient is φ = 3119007072.

The previous prime is 3120122987. The next prime is 3120123037. The reversal of 3120123011 is 1103210213.

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 3120123011 - 2¹⁸ = 3119860867 is a prime.

It is a super-2 number, since 2×3120123011² = 19470335207543412242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3120123211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553766 + ... + 559371.

It is an arithmetic number, because the mean of its divisors is an integer number (780309738).

Almost surely, 2^3120123011 is an apocalyptic number.

3120123011 is a deficient number, since it is larger than the sum of its proper divisors (1115941).

3120123011 is a wasteful number, since it uses less digits than its factorization.

3120123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115940.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 3120123011 is about 55858.0612893072. The cubic root of 3120123011 is about 1461.2479183215.

Adding to 3120123011 its reverse (1103210213), we get a palindrome (4223333224).

The spelling of 3120123011 in words is "three billion, one hundred twenty million, one hundred twenty-three thousand, eleven".