203338320947 has 16 divisors (see below), whose sum is σ = 206726414400. Its totient is φ = 199980057600.

The previous prime is 203338320943. The next prime is 203338320961. The reversal of 203338320947 is 749023833302.

It is a cyclic number.

It is not a de Polignac number, because 203338320947 - 2² = 203338320943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203338320898 and 203338320907.

It is not an unprimeable number, because it can be changed into a prime (203338320943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24503303 + ... + 24511599.

It is an arithmetic number, because the mean of its divisors is an integer number (12920400900).

Almost surely, 2^203338320947 is an apocalyptic number.

203338320947 is a deficient number, since it is larger than the sum of its proper divisors (3388093453).

203338320947 is a wasteful number, since it uses less digits than its factorization.

203338320947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10046.

The product of its (nonzero) digits is 653184, while the sum is 44.

The spelling of 203338320947 in words is "two hundred three billion, three hundred thirty-eight million, three hundred twenty thousand, nine hundred forty-seven".