21130233113 has 32 divisors (see below), whose sum is σ = 25221030912. Its totient is φ = 17477683200.

The previous prime is 21130233053. The next prime is 21130233121. The reversal of 21130233113 is 31133203112.

It is a cyclic number.

It is not a de Polignac number, because 21130233113 - 2¹⁴ = 21130216729 is a prime.

It is a super-3 number, since 3×21130233113³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21130233133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9813245 + ... + 9815397.

It is an arithmetic number, because the mean of its divisors is an integer number (788157216).

Almost surely, 2^21130233113 is an apocalyptic number.

It is an amenable number.

21130233113 is a deficient number, since it is larger than the sum of its proper divisors (4090797799).

21130233113 is a wasteful number, since it uses less digits than its factorization.

21130233113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21130233113 its reverse (31133203112), we get a palindrome (52263436225).

The spelling of 21130233113 in words is "twenty-one billion, one hundred thirty million, two hundred thirty-three thousand, one hundred thirteen".