1020203002000 has 320 divisors, whose sum is σ = 3045874051584. Its totient is φ = 321840691200.

The previous prime is 1020203001991. The next prime is 1020203002019. The reversal of 1020203002000 is 2003020201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 57685159 + ... + 57702841.

Almost surely, 2^{1020203002000} is an apocalyptic number.

1020203002000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020203002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1522937025792).

1020203002000 is an abundant number, since it is smaller than the sum of its proper divisors (2025671049584).

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

1020203002000 is a wasteful number, since it uses less digits than its factorization.

1020203002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18043 (or 18027 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 1020203002000 its reverse (2003020201), we get a palindrome (1022206022201).

The spelling of 1020203002000 in words is "one trillion, twenty billion, two hundred three million, two thousand".