2002331121 has 32 divisors (see below), whose sum is σ = 3079262208. Its totient is φ = 1133697600.

The previous prime is 2002331101. The next prime is 2002331147. The reversal of 2002331121 is 1211332002.

It is not a de Polignac number, because 2002331121 - 2¹¹ = 2002329073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2002331121.

It is not an unprimeable number, because it can be changed into a prime (2002331101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2070180 + ... + 2071146.

It is an arithmetic number, because the mean of its divisors is an integer number (96226944).

Almost surely, 2^2002331121 is an apocalyptic number.

2002331121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2002331121 is a deficient number, since it is larger than the sum of its proper divisors (1076931087).

2002331121 is a wasteful number, since it uses less digits than its factorization.

2002331121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2002331121 is about 44747.4146850966. The cubic root of 2002331121 is about 1260.4103645718.

Adding to 2002331121 its reverse (1211332002), we get a palindrome (3213663123).

The spelling of 2002331121 in words is "two billion, two million, three hundred thirty-one thousand, one hundred twenty-one".