2120001311 has 8 divisors (see below), whose sum is σ = 2145736320. Its totient is φ = 2094365592.

The previous prime is 2120001281. The next prime is 2120001313. The reversal of 2120001311 is 1131000212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120001311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120001292 and 2120001301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120001313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18596 + ... + 67718.

It is an arithmetic number, because the mean of its divisors is an integer number (268217040).

Almost surely, 2^2120001311 is an apocalyptic number.

2120001311 is a deficient number, since it is larger than the sum of its proper divisors (25735009).

2120001311 is a wasteful number, since it uses less digits than its factorization.

2120001311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49645.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2120001311 is about 46043.4719694334. The cubic root of 2120001311 is about 1284.6319225162.

Adding to 2120001311 its reverse (1131000212), we get a palindrome (3251001523).

The spelling of 2120001311 in words is "two billion, one hundred twenty million, one thousand, three hundred eleven".