231552503341331 has 4 divisors (see below), whose sum is σ = 231552923191200. Its totient is φ = 231552083491464.

The previous prime is 231552503341309. The next prime is 231552503341363. The reversal of 231552503341331 is 133143305255132.

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 231552503341331 - 2¹⁰ = 231552503340307 is a prime.

It is a super-2 number, since 2×231552503341331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231552503341931) 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, 209096576 + ... + 210201053.

It is an arithmetic number, because the mean of its divisors is an integer number (57888230797800).

Almost surely, 2^{231552503341331} is an apocalyptic number.

231552503341331 is a deficient number, since it is larger than the sum of its proper divisors (419849869).

231552503341331 is an equidigital number, since it uses as much as digits as its factorization.

231552503341331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419849868.

The product of its (nonzero) digits is 486000, while the sum is 41.

Adding to 231552503341331 its reverse (133143305255132), we get a palindrome (364695808596463).

The spelling of 231552503341331 in words is "two hundred thirty-one trillion, five hundred fifty-two billion, five hundred three million, three hundred forty-one thousand, three hundred thirty-one".