21301001403124 has 12 divisors (see below), whose sum is σ = 38897480823264. Its totient is φ = 10187435453624.

The previous prime is 21301001403107. The next prime is 21301001403167. The reversal of 21301001403124 is 42130410010312.

It is a junction number, because it is equal to n+sod(n) for n = 21301001403095 and 21301001403104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115766311882 + ... + 115766312065.

It is an arithmetic number, because the mean of its divisors is an integer number (3241456735272).

Almost surely, 2^{21301001403124} is an apocalyptic number.

It is an amenable number.

21301001403124 is a deficient number, since it is larger than the sum of its proper divisors (17596479420140).

21301001403124 is a wasteful number, since it uses less digits than its factorization.

21301001403124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231532623974 (or 231532623972 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21301001403124 its reverse (42130410010312), we get a palindrome (63431411413436).

The spelling of 21301001403124 in words is "twenty-one trillion, three hundred one billion, one million, four hundred three thousand, one hundred twenty-four".