3111020121 has 32 divisors (see below), whose sum is σ = 4594867200. Its totient is φ = 1856623680.

The previous prime is 3111020083. The next prime is 3111020123. The reversal of 3111020121 is 1210201113.

It is not a de Polignac number, because 3111020121 - 2¹⁰ = 3111019097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3111020097 and 3111020106.

It is not an unprimeable number, because it can be changed into a prime (3111020123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 598110 + ... + 603288.

It is an arithmetic number, because the mean of its divisors is an integer number (143589600).

Almost surely, 2^3111020121 is an apocalyptic number.

It is an amenable number.

3111020121 is a deficient number, since it is larger than the sum of its proper divisors (1483847079).

3111020121 is a wasteful number, since it uses less digits than its factorization.

3111020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5469.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 3111020121 is about 55776.5194414280. The cubic root of 3111020121 is about 1459.8254812667.

Adding to 3111020121 its reverse (1210201113), we get a palindrome (4321221234).

The spelling of 3111020121 in words is "three billion, one hundred eleven million, twenty thousand, one hundred twenty-one".