1020010999 has 16 divisors (see below), whose sum is σ = 1259496000. Its totient is φ = 822861312.

The previous prime is 1020010993. The next prime is 1020011017. The reversal of 1020010999 is 9990100201.

It is not a de Polignac number, because 1020010999 - 2¹³ = 1020002807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020010999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020010993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81634 + ... + 93295.

It is an arithmetic number, because the mean of its divisors is an integer number (78718500).

Almost surely, 2^1020010999 is an apocalyptic number.

1020010999 is a deficient number, since it is larger than the sum of its proper divisors (239485001).

1020010999 is an equidigital number, since it uses as much as digits as its factorization.

1020010999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174967 (or 174953 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 1020010999 is about 31937.6110409029. The cubic root of 1020010999 is about 1006.6263277965.

The spelling of 1020010999 in words is "one billion, twenty million, ten thousand, nine hundred ninety-nine".