10423155503 has 4 divisors (see below), whose sum is σ = 10431306240. Its totient is φ = 10415004768.

The previous prime is 10423155487. The next prime is 10423155517. The reversal of 10423155503 is 30555132401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30555132401 = 71329 ⋅428369.

It is a cyclic number.

It is not a de Polignac number, because 10423155503 - 2⁴ = 10423155487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10423155103) 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 in 3 ways as a sum of consecutive naturals, for example, 4073450 + ... + 4076007.

It is an arithmetic number, because the mean of its divisors is an integer number (2607826560).

Almost surely, 2^10423155503 is an apocalyptic number.

10423155503 is a deficient number, since it is larger than the sum of its proper divisors (8150737).

10423155503 is an equidigital number, since it uses as much as digits as its factorization.

10423155503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8150736.

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 10423155503 its reverse (30555132401), we get a palindrome (40978287904).

The spelling of 10423155503 in words is "ten billion, four hundred twenty-three million, one hundred fifty-five thousand, five hundred three".