345531511434203 has 4 divisors (see below), whose sum is σ = 350264819810088. Its totient is φ = 340798203058320.

The previous prime is 345531511434139. The next prime is 345531511434271. The reversal of 345531511434203 is 302434115135543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345531511434203 - 2⁶ = 345531511434139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345531510434203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2366654187833 + ... + 2366654187978.

It is an arithmetic number, because the mean of its divisors is an integer number (87566204952522).

Almost surely, 2^{345531511434203} is an apocalyptic number.

345531511434203 is a deficient number, since it is larger than the sum of its proper divisors (4733308375885).

345531511434203 is an equidigital number, since it uses as much as digits as its factorization.

345531511434203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4733308375884.

The product of its (nonzero) digits is 1296000, while the sum is 44.

Adding to 345531511434203 its reverse (302434115135543), we get a palindrome (647965626569746).

The spelling of 345531511434203 in words is "three hundred forty-five trillion, five hundred thirty-one billion, five hundred eleven million, four hundred thirty-four thousand, two hundred three".