2002131112 has 8 divisors (see below), whose sum is σ = 3753995850. Its totient is φ = 1001065552.

The previous prime is 2002131083. The next prime is 2002131143. The reversal of 2002131112 is 2111312002.

It can be written as a sum of positive squares in only one way, i.e., 1720092676 + 282038436 = 41474^2 + 16794^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2002131092 and 2002131101.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125133187 + ... + 125133202.

Almost surely, 2^2002131112 is an apocalyptic number.

It is an amenable number.

2002131112 is a deficient number, since it is larger than the sum of its proper divisors (1751864738).

2002131112 is a wasteful number, since it uses less digits than its factorization.

2002131112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250266395 (or 250266391 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2002131112 is about 44745.1797627409. The cubic root of 2002131112 is about 1260.3683965196.

Adding to 2002131112 its reverse (2111312002), we get a palindrome (4113443114).

It can be divided in two parts, 200 and 2131112, that added together give a palindrome (2131312).

The spelling of 2002131112 in words is "two billion, two million, one hundred thirty-one thousand, one hundred twelve".