423853171403 has 4 divisors (see below), whose sum is σ = 435308662560. Its totient is φ = 412397680248.

The previous prime is 423853171387. The next prime is 423853171421. The reversal of 423853171403 is 304171358324.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 423853171403 - 2⁴ = 423853171387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423853171463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5727745523 + ... + 5727745596.

It is an arithmetic number, because the mean of its divisors is an integer number (108827165640).

Almost surely, 2^423853171403 is an apocalyptic number.

423853171403 is a deficient number, since it is larger than the sum of its proper divisors (11455491157).

423853171403 is a wasteful number, since it uses less digits than its factorization.

423853171403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11455491156.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 423853171403 in words is "four hundred twenty-three billion, eight hundred fifty-three million, one hundred seventy-one thousand, four hundred three".