2120051351 has 32 divisors (see below), whose sum is σ = 2543400000. Its totient is φ = 1744404480.

The previous prime is 2120051341. The next prime is 2120051363. The reversal of 2120051351 is 1531500212.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120051351 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 (2120051341) 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, 1696775 + ... + 1698023.

It is an arithmetic number, because the mean of its divisors is an integer number (79481250).

Almost surely, 2^2120051351 is an apocalyptic number.

2120051351 is a deficient number, since it is larger than the sum of its proper divisors (423348649).

2120051351 is a wasteful number, since it uses less digits than its factorization.

2120051351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 2120051351 is about 46044.0153657346. The cubic root of 2120051351 is about 1284.6420298174.

Adding to 2120051351 its reverse (1531500212), we get a palindrome (3651551563).

The spelling of 2120051351 in words is "two billion, one hundred twenty million, fifty-one thousand, three hundred fifty-one".