2000121331 has 16 divisors (see below), whose sum is σ = 2295465984. Its totient is φ = 1728406944.

The previous prime is 2000121323. The next prime is 2000121337. The reversal of 2000121331 is 1331210002.

It is not a de Polignac number, because 2000121331 - 2³ = 2000121323 is a prime.

It is a super-2 number, since 2×2000121331² = 8000970677442423122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000121337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57111 + ... + 85216.

It is an arithmetic number, because the mean of its divisors is an integer number (143466624).

Almost surely, 2^2000121331 is an apocalyptic number.

2000121331 is a deficient number, since it is larger than the sum of its proper divisors (295344653).

2000121331 is a wasteful number, since it uses less digits than its factorization.

2000121331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142410.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2000121331 is about 44722.7160512418. The cubic root of 2000121331 is about 1259.9465272932.

Adding to 2000121331 its reverse (1331210002), we get a palindrome (3331331333).

The spelling of 2000121331 in words is "two billion, one hundred twenty-one thousand, three hundred thirty-one".