1321441032431 has 8 divisors (see below), whose sum is σ = 1423438258704. Its totient is φ = 1219493508480.

The previous prime is 1321441032427. The next prime is 1321441032481. The reversal of 1321441032431 is 1342301441231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1321441032431 - 2² = 1321441032427 is a prime.

It is a super-2 number, since 2×1321441032431² (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 = 1321441032394 and 1321441032403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321441032481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12370346 + ... + 12476711.

It is an arithmetic number, because the mean of its divisors is an integer number (177929782338).

Almost surely, 2^{1321441032431} is an apocalyptic number.

1321441032431 is a deficient number, since it is larger than the sum of its proper divisors (101997226273).

1321441032431 is a wasteful number, since it uses less digits than its factorization.

1321441032431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24851161.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 1321441032431 its reverse (1342301441231), we get a palindrome (2663742473662).

The spelling of 1321441032431 in words is "one trillion, three hundred twenty-one billion, four hundred forty-one million, thirty-two thousand, four hundred thirty-one".