3111002001 has 12 divisors (see below), whose sum is σ = 4494789520. Its totient is φ = 2073484440.

The previous prime is 3111001997. The next prime is 3111002021. The reversal of 3111002001 is 1002001113.

It is not a de Polignac number, because 3111002001 - 2² = 3111001997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3111002021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2995 + ... + 78936.

Almost surely, 2^3111002001 is an apocalyptic number.

It is an amenable number.

3111002001 is a deficient number, since it is larger than the sum of its proper divisors (1383787519).

3111002001 is a wasteful number, since it uses less digits than its factorization.

3111002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86156 (or 86153 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 3111002001 is about 55776.3570072482. The cubic root of 3111002001 is about 1459.8226470315.

Adding to 3111002001 its reverse (1002001113), we get a palindrome (4113003114).

The spelling of 3111002001 in words is "three billion, one hundred eleven million, two thousand, one".