2011120051 has 2 divisors, whose sum is σ = 2011120052. Its totient is φ = 2011120050.

The previous prime is 2011120049. The next prime is 2011120061. The reversal of 2011120051 is 1500211102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011120051 - 2¹ = 2011120049 is a prime.

Together with 2011120049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2011120061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005560025 + 1005560026.

It is an arithmetic number, because the mean of its divisors is an integer number (1005560026).

Almost surely, 2^2011120051 is an apocalyptic number.

2011120051 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011120051 is an equidigital number, since it uses as much as digits as its factorization.

2011120051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 2011120051 is about 44845.5131646411. The cubic root of 2011120051 is about 1262.2517999292.

Adding to 2011120051 its reverse (1500211102), we get a palindrome (3511331153).

The spelling of 2011120051 in words is "two billion, eleven million, one hundred twenty thousand, fifty-one".