1321442433031 has 12 divisors (see below), whose sum is σ = 1537219438560. Its totient is φ = 1132641877920.

The previous prime is 1321442433011. The next prime is 1321442433037. The reversal of 1321442433031 is 1303342441231.

It is not a de Polignac number, because 1321442433031 - 2¹⁵ = 1321442400263 is a prime.

It is a super-2 number, since 2×1321442433031² (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 = 1321442432984 and 1321442433002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321442433037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2424210 + ... + 2918848.

It is an arithmetic number, because the mean of its divisors is an integer number (128101619880).

Almost surely, 2^{1321442433031} is an apocalyptic number.

1321442433031 is a deficient number, since it is larger than the sum of its proper divisors (215777005529).

1321442433031 is an equidigital number, since it uses as much as digits as its factorization.

1321442433031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549174 (or 549167 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 1321442433031 its reverse (1303342441231), we get a palindrome (2624784874262).

The spelling of 1321442433031 in words is "one trillion, three hundred twenty-one billion, four hundred forty-two million, four hundred thirty-three thousand, thirty-one".