2051711121 has 8 divisors (see below), whose sum is σ = 2740618144. Its totient is φ = 1365305760.

The previous prime is 2051711119. The next prime is 2051711183. The reversal of 2051711121 is 1211171502.

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

It is not a de Polignac number, because 2051711121 - 2¹ = 2051711119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2051711191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623500 + ... + 626781.

It is an arithmetic number, because the mean of its divisors is an integer number (342577268).

Almost surely, 2^2051711121 is an apocalyptic number.

It is an amenable number.

2051711121 is a deficient number, since it is larger than the sum of its proper divisors (688907023).

2051711121 is a wasteful number, since it uses less digits than its factorization.

2051711121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250831.

The product of its (nonzero) digits is 140, while the sum is 21.

The square root of 2051711121 is about 45295.8179195387. The cubic root of 2051711121 is about 1270.6874408756.

Adding to 2051711121 its reverse (1211171502), we get a palindrome (3262882623).

The spelling of 2051711121 in words is "two billion, fifty-one million, seven hundred eleven thousand, one hundred twenty-one".