1000020124 has 6 divisors (see below), whose sum is σ = 1750035224. Its totient is φ = 500010060.

The previous prime is 1000020107. The next prime is 1000020139. The reversal of 1000020124 is 4210200001.

It is a self number, because there is not a number n which added to its sum of digits gives 1000020124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125002512 + ... + 125002519.

Almost surely, 2^1000020124 is an apocalyptic number.

It is an amenable number.

1000020124 is a deficient number, since it is larger than the sum of its proper divisors (750015100).

1000020124 is a wasteful number, since it uses less digits than its factorization.

1000020124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250005035 (or 250005033 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1000020124 is about 31623.0947884612. The cubic root of 1000020124 is about 1000.0067079550.

Adding to 1000020124 its reverse (4210200001), we get a palindrome (5210220125).

The spelling of 1000020124 in words is "one billion, twenty thousand, one hundred twenty-four".