1013904012 has 72 divisors (see below), whose sum is σ = 2633612800. Its totient is φ = 303320160.

The previous prime is 1013903999. The next prime is 1013904083. The reversal of 1013904012 is 2104093101.

It is a super-2 number, since 2×1013904012² = 2056002691099392288, 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 1013904012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110289 + ... + 119127.

Almost surely, 2^1013904012 is an apocalyptic number.

1013904012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1013904012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1316806400).

1013904012 is an abundant number, since it is smaller than the sum of its proper divisors (1619708788).

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

1013904012 is a wasteful number, since it uses less digits than its factorization.

1013904012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8947 (or 8934 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1013904012 is about 31841.8594306300. The cubic root of 1013904012 is about 1004.6133548945.

Adding to 1013904012 its reverse (2104093101), we get a palindrome (3117997113).

The spelling of 1013904012 in words is "one billion, thirteen million, nine hundred four thousand, twelve".