2001010902 has 64 divisors (see below), whose sum is σ = 4576518144. Its totient is φ = 577348640.

The previous prime is 2001010873. The next prime is 2001010937. The reversal of 2001010902 is 2090101002.

It is a happy number.

It is a congruent number.

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, 341683 + ... + 347489.

It is an arithmetic number, because the mean of its divisors is an integer number (71508096).

Almost surely, 2^2001010902 is an apocalyptic number.

2001010902 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001010902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2288259072).

2001010902 is an abundant number, since it is smaller than the sum of its proper divisors (2575507242).

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

2001010902 is a wasteful number, since it uses less digits than its factorization.

2001010902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6073.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2001010902 is about 44732.6603501290. The cubic root of 2001010902 is about 1260.1332902581.

Adding to 2001010902 its reverse (2090101002), we get a palindrome (4091111904).

The spelling of 2001010902 in words is "two billion, one million, ten thousand, nine hundred two".