1002030021078 has 64 divisors (see below), whose sum is σ = 2160899769600. Its totient is φ = 308741811840.

The previous prime is 1002030021067. The next prime is 1002030021079. The reversal of 1002030021078 is 8701200302001.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002030021079) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4504168 + ... + 4721396.

It is an arithmetic number, because the mean of its divisors is an integer number (33764058900).

Almost surely, 2^{1002030021078} is an apocalyptic number.

1002030021078 is an abundant number, since it is smaller than the sum of its proper divisors (1158869748522).

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

1002030021078 is a wasteful number, since it uses less digits than its factorization.

1002030021078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218237.

The product of its (nonzero) digits is 672, while the sum is 24.

Adding to 1002030021078 its reverse (8701200302001), we get a palindrome (9703230323079).

The spelling of 1002030021078 in words is "one trillion, two billion, thirty million, twenty-one thousand, seventy-eight".