1020321302331 has 8 divisors (see below), whose sum is σ = 1386096863760. Its totient is φ = 667379971232.

The previous prime is 1020321302323. The next prime is 1020321302389. The reversal of 1020321302331 is 1332031230201.

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 1020321302331 - 2³ = 1020321302323 is a prime.

It is a super-2 number, since 2×1020321302331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020321302298 and 1020321302307.

It is not an unprimeable number, because it can be changed into a prime (1020321302311) 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, 3208557396 + ... + 3208557713.

It is an arithmetic number, because the mean of its divisors is an integer number (173262107970).

Almost surely, 2^{1020321302331} is an apocalyptic number.

1020321302331 is a deficient number, since it is larger than the sum of its proper divisors (365775561429).

1020321302331 is an equidigital number, since it uses as much as digits as its factorization.

1020321302331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6417115165.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1020321302331 its reverse (1332031230201), we get a palindrome (2352352532532).

The spelling of 1020321302331 in words is "one trillion, twenty billion, three hundred twenty-one million, three hundred two thousand, three hundred thirty-one".