21302401029 has 32 divisors (see below), whose sum is σ = 35530892544. Its totient is φ = 11052218880.

The previous prime is 21302401013. The next prime is 21302401063. The reversal of 21302401029 is 92010420312.

It is not a de Polignac number, because 21302401029 - 2⁴ = 21302401013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302401009) 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 31 ways as a sum of consecutive naturals, for example, 622944 + ... + 656249.

It is an arithmetic number, because the mean of its divisors is an integer number (1110340392).

Almost surely, 2^21302401029 is an apocalyptic number.

It is an amenable number.

21302401029 is a deficient number, since it is larger than the sum of its proper divisors (14228491515).

21302401029 is a wasteful number, since it uses less digits than its factorization.

21302401029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279277.

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

The spelling of 21302401029 in words is "twenty-one billion, three hundred two million, four hundred one thousand, twenty-nine".