3120001020111 has 4 divisors (see below), whose sum is σ = 4160001360152. Its totient is φ = 2080000680072.

The previous prime is 3120001020089. The next prime is 3120001020167. The reversal of 3120001020111 is 1110201000213.

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

It is not a de Polignac number, because 3120001020111 - 2¹⁹ = 3120000495823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120001020011) 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, 520000170016 + ... + 520000170021.

It is an arithmetic number, because the mean of its divisors is an integer number (1040000340038).

Almost surely, 2^{3120001020111} is an apocalyptic number.

3120001020111 is a deficient number, since it is larger than the sum of its proper divisors (1040000340041).

3120001020111 is a wasteful number, since it uses less digits than its factorization.

3120001020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040000340040.

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

Adding to 3120001020111 its reverse (1110201000213), we get a palindrome (4230202020324).

The spelling of 3120001020111 in words is "three trillion, one hundred twenty billion, one million, twenty thousand, one hundred eleven".