20110201000 has 64 divisors (see below), whose sum is σ = 49826022480. Its totient is φ = 7570892800.

The previous prime is 20110200997. The next prime is 20110201009. The reversal of 20110201000 is 10201102.

It can be written as a sum of positive squares in 8 ways, for example, as 3253333444 + 16856867556 = 57038^2 + 129834^2 .

It is not an unprimeable number, because it can be changed into a prime (20110201009) 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, 574477 + ... + 608476.

Almost surely, 2^20110201000 is an apocalyptic number.

20110201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110201000 is an abundant number, since it is smaller than the sum of its proper divisors (29715821480).

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

20110201000 is a wasteful number, since it uses less digits than its factorization.

20110201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182991 (or 1182977 counting only the distinct ones).

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

Adding to 20110201000 its reverse (10201102), we get a palindrome (20120402102).

The spelling of 20110201000 in words is "twenty billion, one hundred ten million, two hundred one thousand".