2051342403 has 24 divisors (see below), whose sum is σ = 3017946624. Its totient is φ = 1238453040.

The previous prime is 2051342387. The next prime is 2051342411. The reversal of 2051342403 is 3042431502.

It is not a de Polignac number, because 2051342403 - 2⁴ = 2051342387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2051342453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84726 + ... + 106212.

It is an arithmetic number, because the mean of its divisors is an integer number (125747776).

Almost surely, 2^2051342403 is an apocalyptic number.

2051342403 is a deficient number, since it is larger than the sum of its proper divisors (966604221).

2051342403 is a wasteful number, since it uses less digits than its factorization.

2051342403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21775 (or 21764 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 2051342403 is about 45291.7476258093. The cubic root of 2051342403 is about 1270.6113168708.

Adding to 2051342403 its reverse (3042431502), we get a palindrome (5093773905).

The spelling of 2051342403 in words is "two billion, fifty-one million, three hundred forty-two thousand, four hundred three".