1012166403 has 4 divisors (see below), whose sum is σ = 1349555208. Its totient is φ = 674777600.

The previous prime is 1012166401. The next prime is 1012166437. The reversal of 1012166403 is 3046612101.

1012166403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1012166403 - 2¹ = 1012166401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012166401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168694398 + ... + 168694403.

It is an arithmetic number, because the mean of its divisors is an integer number (337388802).

Almost surely, 2^1012166403 is an apocalyptic number.

1012166403 is a deficient number, since it is larger than the sum of its proper divisors (337388805).

1012166403 is an equidigital number, since it uses as much as digits as its factorization.

1012166403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337388804.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1012166403 is about 31814.5627504135. The cubic root of 1012166403 is about 1004.0391311209.

Adding to 1012166403 its reverse (3046612101), we get a palindrome (4058778504).

The spelling of 1012166403 in words is "one billion, twelve million, one hundred sixty-six thousand, four hundred three".