2002120131 has 16 divisors (see below), whose sum is σ = 2925986688. Its totient is φ = 1207651200.

The previous prime is 2002120129. The next prime is 2002120139. The reversal of 2002120131 is 1310212002.

It is not a de Polignac number, because 2002120131 - 2¹ = 2002120129 is a prime.

It is a super-2 number, since 2×2002120131² = 8016970037910914322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2002120139) 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, 136806 + ... + 150731.

It is an arithmetic number, because the mean of its divisors is an integer number (182874168).

Almost surely, 2^2002120131 is an apocalyptic number.

2002120131 is a deficient number, since it is larger than the sum of its proper divisors (923866557).

2002120131 is a wasteful number, since it uses less digits than its factorization.

2002120131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287762.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2002120131 is about 44745.0570566180. The cubic root of 2002120131 is about 1260.3660922864.

Adding to 2002120131 its reverse (1310212002), we get a palindrome (3312332133).

The spelling of 2002120131 in words is "two billion, two million, one hundred twenty thousand, one hundred thirty-one".