1021032401 has 2 divisors, whose sum is σ = 1021032402. Its totient is φ = 1021032400.

The previous prime is 1021032391. The next prime is 1021032407. The reversal of 1021032401 is 1042301201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1019141776 + 1890625 = 31924^2 + 1375^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021032401 - 2¹⁰ = 1021031377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021032407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510516200 + 510516201.

It is an arithmetic number, because the mean of its divisors is an integer number (510516201).

Almost surely, 2^1021032401 is an apocalyptic number.

It is an amenable number.

1021032401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021032401 is an equidigital number, since it uses as much as digits as its factorization.

1021032401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1021032401 is about 31953.5976221771. The cubic root of 1021032401 is about 1006.9622153982.

Adding to 1021032401 its reverse (1042301201), we get a palindrome (2063333602).

The spelling of 1021032401 in words is "one billion, twenty-one million, thirty-two thousand, four hundred one".