21130142104 has 16 divisors (see below), whose sum is σ = 39969628920. Its totient is φ = 10471574400.

The previous prime is 21130142101. The next prime is 21130142107. The reversal of 21130142104 is 40124103112.

It is an interprime number because it is at equal distance from previous prime (21130142101) and next prime (21130142107).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21130142101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11686122 + ... + 11687929.

Almost surely, 2^21130142104 is an apocalyptic number.

It is an amenable number.

21130142104 is a deficient number, since it is larger than the sum of its proper divisors (18839486816).

21130142104 is a wasteful number, since it uses less digits than its factorization.

21130142104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23374170 (or 23374166 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21130142104 its reverse (40124103112), we get a palindrome (61254245216).

The spelling of 21130142104 in words is "twenty-one billion, one hundred thirty million, one hundred forty-two thousand, one hundred four".