21040130425 has 12 divisors (see below), whose sum is σ = 26095986000. Its totient is φ = 16828088720.

The previous prime is 21040130413. The next prime is 21040130459. The reversal of 21040130425 is 52403104012.

It is not a de Polignac number, because 21040130425 - 2⁷ = 21040130297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21040130396 and 21040130405.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 8826 + ... + 205324.

It is an arithmetic number, because the mean of its divisors is an integer number (2174665500).

Almost surely, 2^21040130425 is an apocalyptic number.

21040130425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21040130425 is a deficient number, since it is larger than the sum of its proper divisors (5055855575).

21040130425 is a wasteful number, since it uses less digits than its factorization.

21040130425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200792 (or 200787 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 21040130425 its reverse (52403104012), we get a palindrome (73443234437).

The spelling of 21040130425 in words is "twenty-one billion, forty million, one hundred thirty thousand, four hundred twenty-five".