351132105505 has 4 divisors (see below), whose sum is σ = 421358526612. Its totient is φ = 280905684400.

The previous prime is 351132105479. The next prime is 351132105547. The reversal of 351132105505 is 505501231153.

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

It can be written as a sum of positive squares in 2 ways, for example, as 121630747536 + 229501357969 = 348756^2 + 479063^2 .

It is not a de Polignac number, because 351132105505 - 2¹⁷ = 351131974433 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35113210546 + ... + 35113210555.

It is an arithmetic number, because the mean of its divisors is an integer number (105339631653).

Almost surely, 2^351132105505 is an apocalyptic number.

It is an amenable number.

351132105505 is a deficient number, since it is larger than the sum of its proper divisors (70226421107).

351132105505 is an equidigital number, since it uses as much as digits as its factorization.

351132105505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70226421106.

The product of its (nonzero) digits is 11250, while the sum is 31.

Adding to 351132105505 its reverse (505501231153), we get a palindrome (856633336658).

The spelling of 351132105505 in words is "three hundred fifty-one billion, one hundred thirty-two million, one hundred five thousand, five hundred five".