1302040423 has 2 divisors, whose sum is σ = 1302040424. Its totient is φ = 1302040422.

The previous prime is 1302040391. The next prime is 1302040433. The reversal of 1302040423 is 3240402031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1302040423 - 2⁵ = 1302040391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1302040423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1302040433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651020211 + 651020212.

It is an arithmetic number, because the mean of its divisors is an integer number (651020212).

Almost surely, 2^1302040423 is an apocalyptic number.

1302040423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302040423 is an equidigital number, since it uses as much as digits as its factorization.

1302040423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1302040423 is about 36083.7972364329. The cubic root of 1302040423 is about 1091.9635853873.

Adding to 1302040423 its reverse (3240402031), we get a palindrome (4542442454).

The spelling of 1302040423 in words is "one billion, three hundred two million, forty thousand, four hundred twenty-three".