2146120311 has 4 divisors (see below), whose sum is σ = 2861493752. Its totient is φ = 1430746872.

The previous prime is 2146120289. The next prime is 2146120313. The reversal of 2146120311 is 1130216412.

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

It is a de Polignac number, because none of the positive numbers 2^k-2146120311 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 (2146120313) 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, 357686716 + ... + 357686721.

It is an arithmetic number, because the mean of its divisors is an integer number (715373438).

Almost surely, 2^2146120311 is an apocalyptic number.

2146120311 is a deficient number, since it is larger than the sum of its proper divisors (715373441).

2146120311 is an equidigital number, since it uses as much as digits as its factorization.

2146120311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715373440.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2146120311 is about 46326.2378248008. The cubic root of 2146120311 is about 1289.8860767131.

Adding to 2146120311 its reverse (1130216412), we get a palindrome (3276336723).

The spelling of 2146120311 in words is "two billion, one hundred forty-six million, one hundred twenty thousand, three hundred eleven".