2031430066 has 16 divisors (see below), whose sum is σ = 3108478464. Its totient is φ = 995474304.

The previous prime is 2031430039. The next prime is 2031430067. The reversal of 2031430066 is 6600341302.

It is a super-2 number, since 2×2031430066² = 8253416226097528712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2031430066.

It is not an unprimeable number, because it can be changed into a prime (2031430067) 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, 30850 + ... + 70813.

It is an arithmetic number, because the mean of its divisors is an integer number (194279904).

Almost surely, 2^2031430066 is an apocalyptic number.

2031430066 is a deficient number, since it is larger than the sum of its proper divisors (1077048398).

2031430066 is a wasteful number, since it uses less digits than its factorization.

2031430066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101865.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 2031430066 is about 45071.3885519406. The cubic root of 2031430066 is about 1266.4866763487.

Adding to 2031430066 its reverse (6600341302), we get a palindrome (8631771368).

The spelling of 2031430066 in words is "two billion, thirty-one million, four hundred thirty thousand, sixty-six".