1012112004 has 24 divisors (see below), whose sum is σ = 2393947360. Its totient is φ = 332748864.

The previous prime is 1012111993. The next prime is 1012112021. The reversal of 1012112004 is 4002112101.

It is a happy number.

It is a super-3 number, since 3×1012112004³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576814 + ... + 578565.

Almost surely, 2^1012112004 is an apocalyptic number.

It is an amenable number.

1012112004 is an abundant number, since it is smaller than the sum of its proper divisors (1381835356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012112004 is a wasteful number, since it uses less digits than its factorization.

1012112004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155459 (or 1155457 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1012112004 is about 31813.7078002549. The cubic root of 1012112004 is about 1004.0211433990.

Adding to 1012112004 its reverse (4002112101), we get a palindrome (5014224105).

The spelling of 1012112004 in words is "one billion, twelve million, one hundred twelve thousand, four".