1043020051 has 2 divisors, whose sum is σ = 1043020052. Its totient is φ = 1043020050.

The previous prime is 1043020049. The next prime is 1043020063. The reversal of 1043020051 is 1500203401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1043020051 - 2¹ = 1043020049 is a prime.

Together with 1043020049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1043020001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521510025 + 521510026.

It is an arithmetic number, because the mean of its divisors is an integer number (521510026).

Almost surely, 2^1043020051 is an apocalyptic number.

1043020051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043020051 is an equidigital number, since it uses as much as digits as its factorization.

1043020051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1043020051 is about 32295.8209525629. The cubic root of 1043020051 is about 1014.1391589698.

Adding to 1043020051 its reverse (1500203401), we get a palindrome (2543223452).

The spelling of 1043020051 in words is "one billion, forty-three million, twenty thousand, fifty-one".