1012040112 has 40 divisors (see below), whose sum is σ = 2728111104. Its totient is φ = 322679104.

The previous prime is 1012040087. The next prime is 1012040123. The reversal of 1012040112 is 2110402101.

It is a happy number.

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, 457248 + ... + 459455.

Almost surely, 2^1012040112 is an apocalyptic number.

1012040112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1012040112 is an abundant number, since it is smaller than the sum of its proper divisors (1716070992).

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

1012040112 is a wasteful number, since it uses less digits than its factorization.

1012040112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916737 (or 916731 counting only the distinct ones).

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

The square root of 1012040112 is about 31812.5778898850. The cubic root of 1012040112 is about 1003.9973704052.

Adding to 1012040112 its reverse (2110402101), we get a palindrome (3122442213).

The spelling of 1012040112 in words is "one billion, twelve million, forty thousand, one hundred twelve".