1020971051 has 2 divisors, whose sum is σ = 1020971052. Its totient is φ = 1020971050.

The previous prime is 1020971041. The next prime is 1020971087. The reversal of 1020971051 is 1501790201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020971051 - 2¹⁸ = 1020708907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020971051.

It is not a weakly prime, because it can be changed into another prime (1020971011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510485525 + 510485526.

It is an arithmetic number, because the mean of its divisors is an integer number (510485526).

Almost surely, 2^1020971051 is an apocalyptic number.

1020971051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020971051 is an equidigital number, since it uses as much as digits as its factorization.

1020971051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 1020971051 is about 31952.6376219554. The cubic root of 1020971051 is about 1006.9420468025.

The spelling of 1020971051 in words is "one billion, twenty million, nine hundred seventy-one thousand, fifty-one".