1021400033 has 2 divisors, whose sum is σ = 1021400034. Its totient is φ = 1021400032.

The previous prime is 1021400021. The next prime is 1021400041. The reversal of 1021400033 is 3300041201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 633428224 + 387971809 = 25168^2 + 19697^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021400033 - 2⁶ = 1021399969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021399990 and 1021400017.

It is not a weakly prime, because it can be changed into another prime (1021400063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510700016 + 510700017.

It is an arithmetic number, because the mean of its divisors is an integer number (510700017).

Almost surely, 2^1021400033 is an apocalyptic number.

It is an amenable number.

1021400033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021400033 is an equidigital number, since it uses as much as digits as its factorization.

1021400033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1021400033 is about 31959.3496961374. The cubic root of 1021400033 is about 1007.0830561967.

Adding to 1021400033 its reverse (3300041201), we get a palindrome (4321441234).

The spelling of 1021400033 in words is "one billion, twenty-one million, four hundred thousand, thirty-three".