203459349409293 has 4 divisors (see below), whose sum is σ = 271279132545728. Its totient is φ = 135639566272860.

The previous prime is 203459349409289. The next prime is 203459349409301. The reversal of 203459349409293 is 392904943954302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 203459349409293 - 2² = 203459349409289 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203459349409213) 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, 33909891568213 + ... + 33909891568218.

It is an arithmetic number, because the mean of its divisors is an integer number (67819783136432).

Almost surely, 2^{203459349409293} is an apocalyptic number.

It is an amenable number.

203459349409293 is a deficient number, since it is larger than the sum of its proper divisors (67819783136435).

203459349409293 is an equidigital number, since it uses as much as digits as its factorization.

203459349409293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67819783136434.

The product of its (nonzero) digits is 226748160, while the sum is 66.

The spelling of 203459349409293 in words is "two hundred three trillion, four hundred fifty-nine billion, three hundred forty-nine million, four hundred nine thousand, two hundred ninety-three".