1331333130431 has 4 divisors (see below), whose sum is σ = 1356452623512. Its totient is φ = 1306213637352.

The previous prime is 1331333130377. The next prime is 1331333130437. The reversal of 1331333130431 is 1340313331331.

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 1331333130431 - 2¹⁰ = 1331333129407 is a prime.

It is a super-2 number, since 2×1331333130431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331333130394 and 1331333130403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331333130437) 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, 12559746461 + ... + 12559746566.

It is an arithmetic number, because the mean of its divisors is an integer number (339113155878).

Almost surely, 2^{1331333130431} is an apocalyptic number.

1331333130431 is a deficient number, since it is larger than the sum of its proper divisors (25119493081).

1331333130431 is an equidigital number, since it uses as much as digits as its factorization.

1331333130431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25119493080.

The product of its (nonzero) digits is 8748, while the sum is 29.

Adding to 1331333130431 its reverse (1340313331331), we get a palindrome (2671646461762).

The spelling of 1331333130431 in words is "one trillion, three hundred thirty-one billion, three hundred thirty-three million, one hundred thirty thousand, four hundred thirty-one".