2102001144 has 32 divisors (see below), whose sum is σ = 5257923840. Its totient is φ = 700277600.

The previous prime is 2102001137. The next prime is 2102001149. The reversal of 2102001144 is 4411002012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102001149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21499 + ... + 68309.

It is an arithmetic number, because the mean of its divisors is an integer number (164310120).

Almost surely, 2^2102001144 is an apocalyptic number.

2102001144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2102001144 is an abundant number, since it is smaller than the sum of its proper divisors (3155922696).

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

2102001144 is a wasteful number, since it uses less digits than its factorization.

2102001144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48691 (or 48687 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2102001144 is about 45847.5860215126. The cubic root of 2102001144 is about 1280.9858014552.

Adding to 2102001144 its reverse (4411002012), we get a palindrome (6513003156).

The spelling of 2102001144 in words is "two billion, one hundred two million, one thousand, one hundred forty-four".