203400554540353 has 8 divisors (see below), whose sum is σ = 207738178921728. Its totient is φ = 199063344867744.

The previous prime is 203400554540329. The next prime is 203400554540413. The reversal of 203400554540353 is 353045455004302.

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 203400554540353 - 2²¹ = 203400552443201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203400554520353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102685701 + ... + 104647762.

It is an arithmetic number, because the mean of its divisors is an integer number (25967272365216).

Almost surely, 2^{203400554540353} is an apocalyptic number.

It is an amenable number.

203400554540353 is a deficient number, since it is larger than the sum of its proper divisors (4337624381375).

203400554540353 is a wasteful number, since it uses less digits than its factorization.

203400554540353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207354383.

The product of its (nonzero) digits is 2160000, while the sum is 43.

The spelling of 203400554540353 in words is "two hundred three trillion, four hundred billion, five hundred fifty-four million, five hundred forty thousand, three hundred fifty-three".