201000011110020 has 72 divisors (see below), whose sum is σ = 609702007201560. Its totient is φ = 53599829468160.

The previous prime is 201000011110009. The next prime is 201000011110037. The reversal of 201000011110020 is 20011110000102.

It is a happy number.

201000011110020 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 can be written as a sum of positive squares in 4 ways, for example, as 63298986196356 + 137701024913664 = 7956066^2 + 11734608^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 201000011109984 and 201000011110011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59768716 + ... + 63042044.

It is an arithmetic number, because the mean of its divisors is an integer number (8468083433355).

Almost surely, 2^{201000011110020} is an apocalyptic number.

201000011110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201000011110020 is an abundant number, since it is smaller than the sum of its proper divisors (408701996091540).

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

201000011110020 is a wasteful number, since it uses less digits than its factorization.

201000011110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3614485 (or 3614480 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 201000011110020 its reverse (20011110000102), we get a palindrome (221011121110122).

The spelling of 201000011110020 in words is "two hundred one trillion, eleven million, one hundred ten thousand, twenty".