202011001000 has 128 divisors (see below), whose sum is σ = 493591138560. Its totient is φ = 77239008000.

The previous prime is 202011000991. The next prime is 202011001063. The reversal of 202011001000 is 100110202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67089495 + ... + 67092505.

It is an arithmetic number, because the mean of its divisors is an integer number (3856180770).

Almost surely, 2^202011001000 is an apocalyptic number.

202011001000 is a gapful number since it is divisible by the number (20) 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 202011001000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246795569280).

202011001000 is an abundant number, since it is smaller than the sum of its proper divisors (291580137560).

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

202011001000 is a wasteful number, since it uses less digits than its factorization.

202011001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5972 (or 5958 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 202011001000 its reverse (100110202), we get a palindrome (202111111202).

It can be divided in two parts, 20201 and 1001000, that added together give a palindrome (1021201).

The spelling of 202011001000 in words is "two hundred two billion, eleven million, one thousand".