2001433121332 has 24 divisors (see below), whose sum is σ = 3579806361600. Its totient is φ = 978853266720.

The previous prime is 2001433121299. The next prime is 2001433121341. The reversal of 2001433121332 is 2331213341002.

It is a junction number, because it is equal to n+sod(n) for n = 2001433121297 and 2001433121306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27709207 + ... + 27781342.

It is an arithmetic number, because the mean of its divisors is an integer number (149158598400).

Almost surely, 2^{2001433121332} is an apocalyptic number.

It is an amenable number.

2001433121332 is a deficient number, since it is larger than the sum of its proper divisors (1578373240268).

2001433121332 is a wasteful number, since it uses less digits than its factorization.

2001433121332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55490751 (or 55490749 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2001433121332 its reverse (2331213341002), we get a palindrome (4332646462334).

The spelling of 2001433121332 in words is "two trillion, one billion, four hundred thirty-three million, one hundred twenty-one thousand, three hundred thirty-two".