21346053201 has 80 divisors (see below), whose sum is σ = 35266176000. Its totient is φ = 12759832800.

The previous prime is 21346053167. The next prime is 21346053221. The reversal of 21346053201 is 10235064312.

21346053201 is a `hidden beast` number, since 2 + 1 + 34 + 605 + 3 + 20 + 1 = 666.

It is not a de Polignac number, because 21346053201 - 2⁶ = 21346053137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (21346053221) 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 79 ways as a sum of consecutive naturals, for example, 23227020 + ... + 23227938.

It is an arithmetic number, because the mean of its divisors is an integer number (440827200).

Almost surely, 2^21346053201 is an apocalyptic number.

It is an amenable number.

21346053201 is a deficient number, since it is larger than the sum of its proper divisors (13920122799).

21346053201 is a wasteful number, since it uses less digits than its factorization.

21346053201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272 (or 1263 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The spelling of 21346053201 in words is "twenty-one billion, three hundred forty-six million, fifty-three thousand, two hundred one".