21456010301 has 16 divisors (see below), whose sum is σ = 24978585600. Its totient is φ = 18213511680.

The previous prime is 21456010297. The next prime is 21456010307. The reversal of 21456010301 is 10301065412.

It is not a de Polignac number, because 21456010301 - 2² = 21456010297 is a prime.

It is a super-2 number, since 2×21456010301² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21456010307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427976 + ... + 475473.

It is an arithmetic number, because the mean of its divisors is an integer number (1561161600).

Almost surely, 2^21456010301 is an apocalyptic number.

It is an amenable number.

21456010301 is a deficient number, since it is larger than the sum of its proper divisors (3522575299).

21456010301 is a wasteful number, since it uses less digits than its factorization.

21456010301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903604.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 21456010301 its reverse (10301065412), we get a palindrome (31757075713).

The spelling of 21456010301 in words is "twenty-one billion, four hundred fifty-six million, ten thousand, three hundred one".