1020332304421 has 2 divisors, whose sum is σ = 1020332304422. Its totient is φ = 1020332304420.

The previous prime is 1020332304359. The next prime is 1020332304473. The reversal of 1020332304421 is 1244032330201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 600539753025 + 419792551396 = 774945^2 + 647914^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020332304421 - 2¹¹ = 1020332302373 is a prime.

It is a super-2 number, since 2×1020332304421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020332304821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510166152210 + 510166152211.

It is an arithmetic number, because the mean of its divisors is an integer number (510166152211).

Almost surely, 2^{1020332304421} is an apocalyptic number.

It is an amenable number.

1020332304421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020332304421 is an equidigital number, since it uses as much as digits as its factorization.

1020332304421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1020332304421 its reverse (1244032330201), we get a palindrome (2264364634622).

The spelling of 1020332304421 in words is "one trillion, twenty billion, three hundred thirty-two million, three hundred four thousand, four hundred twenty-one".