1000112120209 has 4 divisors (see below), whose sum is σ = 1052749600240. Its totient is φ = 947474640180.

The previous prime is 1000112120167. The next prime is 1000112120219. The reversal of 1000112120209 is 9020212110001.

It is a happy number.

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 1000112120209 - 2¹³ = 1000112112017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 52637480011 = 1000112120209 / (1 + 0 + 0 + 0 + 1 + 1 + 2 + 1 + 2 + 0 + 2 + 0 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000112120219) 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, 26318739987 + ... + 26318740024.

It is an arithmetic number, because the mean of its divisors is an integer number (263187400060).

Almost surely, 2^{1000112120209} is an apocalyptic number.

1000112120209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1000112120209 is a deficient number, since it is larger than the sum of its proper divisors (52637480031).

1000112120209 is an equidigital number, since it uses as much as digits as its factorization.

1000112120209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52637480030.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 1000112120209 in words is "one trillion, one hundred twelve million, one hundred twenty thousand, two hundred nine".