1000199331 has 6 divisors (see below), whose sum is σ = 1444732380. Its totient is φ = 666799548.

The previous prime is 1000199309. The next prime is 1000199341. The reversal of 1000199331 is 1339910001.

It is not a de Polignac number, because 1000199331 - 2⁷ = 1000199203 is a prime.

It is a super-2 number, since 2×1000199331² = 2000797403465695122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1000199295 and 1000199304.

It is not an unprimeable number, because it can be changed into a prime (1000199341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55566621 + ... + 55566638.

It is an arithmetic number, because the mean of its divisors is an integer number (240788730).

Almost surely, 2^1000199331 is an apocalyptic number.

1000199331 is a deficient number, since it is larger than the sum of its proper divisors (444533049).

1000199331 is a wasteful number, since it uses less digits than its factorization.

1000199331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111133265 (or 111133262 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 27.

The square root of 1000199331 is about 31625.9281444830. The cubic root of 1000199331 is about 1000.0664392524.

The spelling of 1000199331 in words is "one billion, one hundred ninety-nine thousand, three hundred thirty-one".