1020201002004 has 48 divisors (see below), whose sum is σ = 2387047219200. Its totient is φ = 339127528800.

The previous prime is 1020201002003. The next prime is 1020201002113. The reversal of 1020201002004 is 4002001020201.

1020201002004 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1020201002004² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020201002003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41126397 + ... + 41151195.

It is an arithmetic number, because the mean of its divisors is an integer number (49730150400).

Almost surely, 2^{1020201002004} is an apocalyptic number.

It is an amenable number.

1020201002004 is an abundant number, since it is smaller than the sum of its proper divisors (1366846217196).

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

1020201002004 is a wasteful number, since it uses less digits than its factorization.

1020201002004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34140 (or 34138 counting only the distinct ones).

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

Adding to 1020201002004 its reverse (4002001020201), we get a palindrome (5022202022205).

The spelling of 1020201002004 in words is "one trillion, twenty billion, two hundred one million, two thousand, four".