1010023409 has 4 divisors (see below), whose sum is σ = 1011137904. Its totient is φ = 1008908916.

The previous prime is 1010023379. The next prime is 1010023477. The reversal of 1010023409 is 9043200101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1010023409 - 2⁸ = 1010023153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010023009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555887 + ... + 557700.

It is an arithmetic number, because the mean of its divisors is an integer number (252784476).

Almost surely, 2^1010023409 is an apocalyptic number.

It is an amenable number.

1010023409 is a deficient number, since it is larger than the sum of its proper divisors (1114495).

1010023409 is an equidigital number, since it uses as much as digits as its factorization.

1010023409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114494.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1010023409 is about 31780.8654539174. The cubic root of 1010023409 is about 1003.3300348919.

The spelling of 1010023409 in words is "one billion, ten million, twenty-three thousand, four hundred nine".