1066312403 has 8 divisors (see below), whose sum is σ = 1215885888. Its totient is φ = 926388864.

The previous prime is 1066312393. The next prime is 1066312441. The reversal of 1066312403 is 3042136601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1066312403 - 2²⁰ = 1065263827 is a prime.

It is a super-2 number, since 2×1066312403² = 2274044281583268818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066312483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2412251 + ... + 2412692.

It is an arithmetic number, because the mean of its divisors is an integer number (151985736).

Almost surely, 2^1066312403 is an apocalyptic number.

1066312403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1066312403 is a deficient number, since it is larger than the sum of its proper divisors (149573485).

1066312403 is a wasteful number, since it uses less digits than its factorization.

1066312403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4824973.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1066312403 is about 32654.4392541045. The cubic root of 1066312403 is about 1021.6327825042.

The spelling of 1066312403 in words is "one billion, sixty-six million, three hundred twelve thousand, four hundred three".