21302001294 has 64 divisors (see below), whose sum is σ = 49901322240. Its totient is φ = 5936767200.

The previous prime is 21302001293. The next prime is 21302001311. The reversal of 21302001294 is 49210020312.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302001293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236719 + ... + 314069.

It is an arithmetic number, because the mean of its divisors is an integer number (779708160).

Almost surely, 2^21302001294 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21302001294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24950661120).

21302001294 is an abundant number, since it is smaller than the sum of its proper divisors (28599320946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21302001294 is a wasteful number, since it uses less digits than its factorization.

21302001294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77525.

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 21302001294 in words is "twenty-one billion, three hundred two million, one thousand, two hundred ninety-four".