2001012030 has 144 divisors (see below), whose sum is σ = 5606087760. Its totient is φ = 493461504.

The previous prime is 2001012019. The next prime is 2001012067. The reversal of 2001012030 is 302101002.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 14395701 + ... + 14395839.

It is an arithmetic number, because the mean of its divisors is an integer number (38931165).

Almost surely, 2^2001012030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001012030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2803043880).

2001012030 is an abundant number, since it is smaller than the sum of its proper divisors (3605075730).

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

2001012030 is a wasteful number, since it uses less digits than its factorization.

2001012030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2001012030 is about 44732.6729583646. The cubic root of 2001012030 is about 1260.1335270434.

Adding to 2001012030 its reverse (302101002), we get a palindrome (2303113032).

The spelling of 2001012030 in words is "two billion, one million, twelve thousand, thirty".