1021249883 has 2 divisors, whose sum is σ = 1021249884. Its totient is φ = 1021249882.

The previous prime is 1021249847. The next prime is 1021249927. The reversal of 1021249883 is 3889421201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021249883 - 2¹² = 1021245787 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021249843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510624941 + 510624942.

It is an arithmetic number, because the mean of its divisors is an integer number (510624942).

Almost surely, 2^1021249883 is an apocalyptic number.

1021249883 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021249883 is an equidigital number, since it uses as much as digits as its factorization.

1021249883 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 1021249883 is about 31957.0005319648. Note that the first 3 decimals coincide. The cubic root of 1021249883 is about 1007.0337053298.

The spelling of 1021249883 in words is "one billion, twenty-one million, two hundred forty-nine thousand, eight hundred eighty-three".