2001102054320 has 20 divisors (see below), whose sum is σ = 4652562276480. Its totient is φ = 800440821696.

The previous prime is 2001102054313. The next prime is 2001102054431. The reversal of 2001102054320 is 234502011002.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2001102054292 and 2001102054301.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12506887760 + ... + 12506887919.

It is an arithmetic number, because the mean of its divisors is an integer number (232628113824).

Almost surely, 2^{2001102054320} is an apocalyptic number.

2001102054320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001102054320 is an abundant number, since it is smaller than the sum of its proper divisors (2651460222160).

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

2001102054320 is a wasteful number, since it uses less digits than its factorization.

2001102054320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25013775692 (or 25013775686 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 2001102054320 its reverse (234502011002), we get a palindrome (2235604065322).

The spelling of 2001102054320 in words is "two trillion, one billion, one hundred two million, fifty-four thousand, three hundred twenty".