2051701123 has 4 divisors (see below), whose sum is σ = 2055732480. Its totient is φ = 2047669768.

The previous prime is 2051701109. The next prime is 2051701133. The reversal of 2051701123 is 3211071502.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2051701123 - 2⁹ = 2051700611 is a prime.

It is a super-2 number, since 2×2051701123² = 8418954996238922258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2051701094 and 2051701103.

It is not an unprimeable number, because it can be changed into a prime (2051701103) 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, 2014915 + ... + 2015932.

It is an arithmetic number, because the mean of its divisors is an integer number (513933120).

Almost surely, 2^2051701123 is an apocalyptic number.

2051701123 is a deficient number, since it is larger than the sum of its proper divisors (4031357).

2051701123 is an equidigital number, since it uses as much as digits as its factorization.

2051701123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031356.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 2051701123 is about 45295.7075560146. The cubic root of 2051701123 is about 1270.6853768498.

Adding to 2051701123 its reverse (3211071502), we get a palindrome (5262772625).

The spelling of 2051701123 in words is "two billion, fifty-one million, seven hundred one thousand, one hundred twenty-three".