1020331232431 has 8 divisors (see below), whose sum is σ = 1216792525824. Its totient is φ = 836544861240.

The previous prime is 1020331232423. The next prime is 1020331232441. The reversal of 1020331232431 is 1342321330201.

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

It is a cyclic number.

It is not a de Polignac number, because 1020331232431 - 2³ = 1020331232423 is a prime.

It is a super-2 number, since 2×1020331232431² (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 = 1020331232396 and 1020331232405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020331232441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3168730375 + ... + 3168730696.

It is an arithmetic number, because the mean of its divisors is an integer number (152099065728).

Almost surely, 2^{1020331232431} is an apocalyptic number.

1020331232431 is a deficient number, since it is larger than the sum of its proper divisors (196461293393).

1020331232431 is an equidigital number, since it uses as much as digits as its factorization.

1020331232431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6337461101.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1020331232431 its reverse (1342321330201), we get a palindrome (2362652562632).

The spelling of 1020331232431 in words is "one trillion, twenty billion, three hundred thirty-one million, two hundred thirty-two thousand, four hundred thirty-one".