21130003112 has 32 divisors (see below), whose sum is σ = 40436706600. Its totient is φ = 10347577344.

The previous prime is 21130003091. The next prime is 21130003117.

21130003112 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 21121971556 + 8031556 = 145334^2 + 2834^2 .

It is not an unprimeable number, because it can be changed into a prime (21130003117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201464 + ... + 287832.

Almost surely, 2^21130003112 is an apocalyptic number.

It is an amenable number.

21130003112 is a deficient number, since it is larger than the sum of its proper divisors (19306703488).

21130003112 is a wasteful number, since it uses less digits than its factorization.

21130003112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87005 (or 87001 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

It can be divided in two parts, 2113000 and 3112, that added together give a palindrome (2116112).

The spelling of 21130003112 in words is "twenty-one billion, one hundred thirty million, three thousand, one hundred twelve".