1020441324431 has 4 divisors (see below), whose sum is σ = 1045330137264. Its totient is φ = 995552511600.

The previous prime is 1020441324421. The next prime is 1020441324503. The reversal of 1020441324431 is 1344231440201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020441324431 is a prime.

It is a super-2 number, since 2×1020441324431² (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 = 1020441324394 and 1020441324403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020441324421) 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, 12444406355 + ... + 12444406436.

It is an arithmetic number, because the mean of its divisors is an integer number (261332534316).

Almost surely, 2^{1020441324431} is an apocalyptic number.

1020441324431 is a deficient number, since it is larger than the sum of its proper divisors (24888812833).

1020441324431 is an equidigital number, since it uses as much as digits as its factorization.

1020441324431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24888812832.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1020441324431 its reverse (1344231440201), we get a palindrome (2364672764632).

The spelling of 1020441324431 in words is "one trillion, twenty billion, four hundred forty-one million, three hundred twenty-four thousand, four hundred thirty-one".