1002011312 has 20 divisors (see below), whose sum is σ = 1942058736. Its totient is φ = 500834880.

The previous prime is 1002011293. The next prime is 1002011347. The reversal of 1002011312 is 2131102001.

It is a super-2 number, since 2×1002011312² = 2008053338751922688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1002011293 and 1002011302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47258 + ... + 65094.

Almost surely, 2^1002011312 is an apocalyptic number.

It is an amenable number.

1002011312 is a deficient number, since it is larger than the sum of its proper divisors (940047424).

1002011312 is a wasteful number, since it uses less digits than its factorization.

1002011312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21356 (or 21350 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1002011312 is about 31654.5622620184. The cubic root of 1002011312 is about 1000.6699883487.

Adding to 1002011312 its reverse (2131102001), we get a palindrome (3133113313).

The spelling of 1002011312 in words is "one billion, two million, eleven thousand, three hundred twelve".