1042012100 has 36 divisors (see below), whose sum is σ = 2271354624. Its totient is φ = 414926880.

The previous prime is 1042012087. The next prime is 1042012123. The reversal of 1042012100 is 12102401.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1064 + ... + 45663.

It is an arithmetic number, because the mean of its divisors is an integer number (63093184).

Almost surely, 2^1042012100 is an apocalyptic number.

1042012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042012100 is an abundant number, since it is smaller than the sum of its proper divisors (1229342524).

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

1042012100 is a wasteful number, since it uses less digits than its factorization.

1042012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46964 (or 46957 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1042012100 is about 32280.2122050026. The cubic root of 1042012100 is about 1013.8123732948.

Adding to 1042012100 its reverse (12102401), we get a palindrome (1054114501).

The spelling of 1042012100 in words is "one billion, forty-two million, twelve thousand, one hundred".