1000020023120 has 40 divisors (see below), whose sum is σ = 2426135538816. Its totient is φ = 382616355968.

The previous prime is 1000020023081. The next prime is 1000020023147. The reversal of 1000020023120 is 213200200001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 271742732 + ... + 271746411.

Almost surely, 2^{1000020023120} is an apocalyptic number.

1000020023120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000020023120 is an abundant number, since it is smaller than the sum of its proper divisors (1426115515696).

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

1000020023120 is a wasteful number, since it uses less digits than its factorization.

1000020023120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543489179 (or 543489173 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 1000020023120 its reverse (213200200001), we get a palindrome (1213220223121).

The spelling of 1000020023120 in words is "one trillion, twenty million, twenty-three thousand, one hundred twenty".