203432817005 has 16 divisors (see below), whose sum is σ = 266324398848. Its totient is φ = 147944280000.

The previous prime is 203432816999. The next prime is 203432817017. The reversal of 203432817005 is 500718234302.

It is not a de Polignac number, because 203432817005 - 2¹⁶ = 203432751469 is a prime.

It is a super-2 number, since 2×203432817005² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1318460 + ... + 1464650.

It is an arithmetic number, because the mean of its divisors is an integer number (16645274928).

Almost surely, 2^203432817005 is an apocalyptic number.

It is an amenable number.

203432817005 is a deficient number, since it is larger than the sum of its proper divisors (62891581843).

203432817005 is a wasteful number, since it uses less digits than its factorization.

203432817005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171508.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 203432817005 in words is "two hundred three billion, four hundred thirty-two million, eight hundred seventeen thousand, five".