1000040401020 has 48 divisors (see below), whose sum is σ = 2805724656000. Its totient is φ = 266143008576.

The previous prime is 1000040400971. The next prime is 1000040401043. The reversal of 1000040401020 is 201040400001.

1000040401020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1000040400987 and 1000040401005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16670802 + ... + 16730681.

It is an arithmetic number, because the mean of its divisors is an integer number (58452597000).

Almost surely, 2^{1000040401020} is an apocalyptic number.

1000040401020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000040401020 is an abundant number, since it is smaller than the sum of its proper divisors (1805684254980).

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

1000040401020 is a wasteful number, since it uses less digits than its factorization.

1000040401020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33401994 (or 33401992 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1000040401020 its reverse (201040400001), we get a palindrome (1201080801021).

The spelling of 1000040401020 in words is "one trillion, forty million, four hundred one thousand, twenty".