15420084203 has 2 divisors, whose sum is σ = 15420084204. Its totient is φ = 15420084202.

The previous prime is 15420084191. The next prime is 15420084241. The reversal of 15420084203 is 30248002451.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15420084203 - 2¹⁰ = 15420083179 is a prime.

It is a super-2 number, since 2×15420084203² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15420084293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7710042101 + 7710042102.

It is an arithmetic number, because the mean of its divisors is an integer number (7710042102).

Almost surely, 2^15420084203 is an apocalyptic number.

15420084203 is a deficient number, since it is larger than the sum of its proper divisors (1).

15420084203 is an equidigital number, since it uses as much as digits as its factorization.

15420084203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 15420084203 its reverse (30248002451), we get a palindrome (45668086654).

The spelling of 15420084203 in words is "fifteen billion, four hundred twenty million, eighty-four thousand, two hundred three".