21442301013 has 32 divisors (see below), whose sum is σ = 33584514304. Its totient is φ = 11911836672.

The previous prime is 21442300967. The next prime is 21442301051. The reversal of 21442301013 is 31010324412.

It is not a de Polignac number, because 21442301013 - 2⁹ = 21442300501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21442301053) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 997131 + ... + 1018407.

It is an arithmetic number, because the mean of its divisors is an integer number (1049516072).

Almost surely, 2^21442301013 is an apocalyptic number.

It is an amenable number.

21442301013 is a deficient number, since it is larger than the sum of its proper divisors (12142213291).

21442301013 is a wasteful number, since it uses less digits than its factorization.

21442301013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22621.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21442301013 its reverse (31010324412), we get a palindrome (52452625425).

The spelling of 21442301013 in words is "twenty-one billion, four hundred forty-two million, three hundred one thousand, thirteen".