1331230012231 has 4 divisors (see below), whose sum is σ = 1521405728272. Its totient is φ = 1141054296192.

The previous prime is 1331230012213. The next prime is 1331230012241. The reversal of 1331230012231 is 1322100321331.

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 1331230012231 - 2⁷ = 1331230012103 is a prime.

It is a super-2 number, since 2×1331230012231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331230012241) 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, 95087858010 + ... + 95087858023.

It is an arithmetic number, because the mean of its divisors is an integer number (380351432068).

Almost surely, 2^{1331230012231} is an apocalyptic number.

1331230012231 is a deficient number, since it is larger than the sum of its proper divisors (190175716041).

1331230012231 is an equidigital number, since it uses as much as digits as its factorization.

1331230012231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190175716040.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1331230012231 its reverse (1322100321331), we get a palindrome (2653330333562).

The spelling of 1331230012231 in words is "one trillion, three hundred thirty-one billion, two hundred thirty million, twelve thousand, two hundred thirty-one".