203344342404340 has 12 divisors (see below), whose sum is σ = 427023119049156. Its totient is φ = 81337736961728.

The previous prime is 203344342404331. The next prime is 203344342404347. The reversal of 203344342404340 is 43404243443302.

It can be written as a sum of positive squares in 2 ways, for example, as 45271205078544 + 158073137325796 = 6728388^2 + 12572714^2 .

It is a junction number, because it is equal to n+sod(n) for n = 203344342404293 and 203344342404302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203344342404347) 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, 5083608560089 + ... + 5083608560128.

It is an arithmetic number, because the mean of its divisors is an integer number (35585259920763).

Almost surely, 2^{203344342404340} is an apocalyptic number.

203344342404340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203344342404340 is an abundant number, since it is smaller than the sum of its proper divisors (223678776644816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203344342404340 is a wasteful number, since it uses less digits than its factorization.

203344342404340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10167217120226 (or 10167217120224 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 40.

Adding to 203344342404340 its reverse (43404243443302), we get a palindrome (246748585847642).

The spelling of 203344342404340 in words is "two hundred three trillion, three hundred forty-four billion, three hundred forty-two million, four hundred four thousand, three hundred forty".