2051323110 has 32 divisors (see below), whose sum is σ = 5470195680. Its totient is φ = 547019424.

The previous prime is 2051323097. The next prime is 2051323123. The reversal of 2051323110 is 113231502.

2051323110 is a `hidden beast` number, since 20 + 513 + 23 + 110 = 666.

It is an interprime number because it is at equal distance from previous prime (2051323097) and next prime (2051323123).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3798477 + ... + 3799016.

It is an arithmetic number, because the mean of its divisors is an integer number (170943615).

Almost surely, 2^2051323110 is an apocalyptic number.

2051323110 is an abundant number, since it is smaller than the sum of its proper divisors (3418872570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2051323110 is a wasteful number, since it uses less digits than its factorization.

2051323110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7597509 (or 7597503 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2051323110 is about 45291.5346394886. The cubic root of 2051323110 is about 1270.6073334661.

Adding to 2051323110 its reverse (113231502), we get a palindrome (2164554612).

The spelling of 2051323110 in words is "two billion, fifty-one million, three hundred twenty-three thousand, one hundred ten".