2051323123 has 2 divisors, whose sum is σ = 2051323124. Its totient is φ = 2051323122.

The previous prime is 2051323097. The next prime is 2051323133. The reversal of 2051323123 is 3213231502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2051323123 - 2¹³ = 2051314931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2051323094 and 2051323103.

It is not a weakly prime, because it can be changed into another prime (2051323133) 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 as a sum of consecutive naturals, namely, 1025661561 + 1025661562.

It is an arithmetic number, because the mean of its divisors is an integer number (1025661562).

Almost surely, 2^2051323123 is an apocalyptic number.

2051323123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051323123 is an equidigital number, since it uses as much as digits as its factorization.

2051323123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 2051323123 is about 45291.5347830033. The cubic root of 2051323123 is about 1270.6073361502.

Adding to 2051323123 its reverse (3213231502), we get a palindrome (5264554625).

The spelling of 2051323123 in words is "two billion, fifty-one million, three hundred twenty-three thousand, one hundred twenty-three".