2001333512 has 8 divisors (see below), whose sum is σ = 3752500350. Its totient is φ = 1000666752.

The previous prime is 2001333493. The next prime is 2001333541. The reversal of 2001333512 is 2153331002.

It can be written as a sum of positive squares in only one way, i.e., 1826194756 + 175138756 = 42734^2 + 13234^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125083337 + ... + 125083352.

Almost surely, 2^2001333512 is an apocalyptic number.

It is an amenable number.

2001333512 is a deficient number, since it is larger than the sum of its proper divisors (1751166838).

2001333512 is a wasteful number, since it uses less digits than its factorization.

2001333512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250166695 (or 250166691 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 2001333512 is about 44736.2661830421. The cubic root of 2001333512 is about 1260.2010076561.

Adding to 2001333512 its reverse (2153331002), we get a palindrome (4154664514).

The spelling of 2001333512 in words is "two billion, one million, three hundred thirty-three thousand, five hundred twelve".