231551351352355 has 4 divisors (see below), whose sum is σ = 277861621622832. Its totient is φ = 185241081081880.

The previous prime is 231551351352281. The next prime is 231551351352367. The reversal of 231551351352355 is 553253153155132.

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

It is not a de Polignac number, because 231551351352355 - 2¹⁹ = 231551350828067 is a prime.

It is a Smith number, since the sum of its digits (49) 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 a junction number, because it is equal to n+sod(n) for n = 231551351352299 and 231551351352308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23155135135231 + ... + 23155135135240.

It is an arithmetic number, because the mean of its divisors is an integer number (69465405405708).

Almost surely, 2^{231551351352355} is an apocalyptic number.

231551351352355 is a deficient number, since it is larger than the sum of its proper divisors (46310270270477).

231551351352355 is an equidigital number, since it uses as much as digits as its factorization.

231551351352355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46310270270476.

The product of its digits is 5062500, while the sum is 49.

The spelling of 231551351352355 in words is "two hundred thirty-one trillion, five hundred fifty-one billion, three hundred fifty-one million, three hundred fifty-two thousand, three hundred fifty-five".