23402166503 has 2 divisors, whose sum is σ = 23402166504. Its totient is φ = 23402166502.

The previous prime is 23402166461. The next prime is 23402166517. The reversal of 23402166503 is 30566120432.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23402166503 is a prime.

It is a super-2 number, since 2×23402166503² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23402166503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23402163503) 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, 11701083251 + 11701083252.

It is an arithmetic number, because the mean of its divisors is an integer number (11701083252).

Almost surely, 2^23402166503 is an apocalyptic number.

23402166503 is a deficient number, since it is larger than the sum of its proper divisors (1).

23402166503 is an equidigital number, since it uses as much as digits as its factorization.

23402166503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 23402166503 its reverse (30566120432), we get a palindrome (53968286935).

The spelling of 23402166503 in words is "twenty-three billion, four hundred two million, one hundred sixty-six thousand, five hundred three".