172113285403 has 8 divisors (see below), whose sum is σ = 175784994000. Its totient is φ = 168479625888.

The previous prime is 172113285277. The next prime is 172113285431. The reversal of 172113285403 is 304582311271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172113285403 - 2⁹ = 172113284891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172113285473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9503128 + ... + 9521221.

It is an arithmetic number, because the mean of its divisors is an integer number (21973124250).

Almost surely, 2^172113285403 is an apocalyptic number.

172113285403 is a deficient number, since it is larger than the sum of its proper divisors (3671708597).

172113285403 is a wasteful number, since it uses less digits than its factorization.

172113285403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19024541.

The product of its (nonzero) digits is 40320, while the sum is 37.

Adding to 172113285403 its reverse (304582311271), we get a palindrome (476695596674).

The spelling of 172113285403 in words is "one hundred seventy-two billion, one hundred thirteen million, two hundred eighty-five thousand, four hundred three".