2051111007 has 48 divisors (see below), whose sum is σ = 3269185920. Its totient is φ = 1228920000.

The previous prime is 2051110969. The next prime is 2051111011. The reversal of 2051111007 is 7001111502.

It is a happy number.

It is not a de Polignac number, because 2051111007 - 2¹⁶ = 2051045471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051111017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4895044 + ... + 4895462.

It is an arithmetic number, because the mean of its divisors is an integer number (68108040).

Almost surely, 2^2051111007 is an apocalyptic number.

2051111007 is a deficient number, since it is larger than the sum of its proper divisors (1218074913).

2051111007 is a wasteful number, since it uses less digits than its factorization.

2051111007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 18.

The square root of 2051111007 is about 45289.1930486733. The cubic root of 2051111007 is about 1270.5635391438.

Adding to 2051111007 its reverse (7001111502), we get a palindrome (9052222509).

The spelling of 2051111007 in words is "two billion, fifty-one million, one hundred eleven thousand, seven".