21000004302 has 16 divisors (see below), whose sum is σ = 42013642320. Its totient is φ = 6997729152.

The previous prime is 21000004279. The next prime is 21000004313. The reversal of 21000004302 is 20340000012.

21000004302 is a modest number, since divided by 4302 gives 2100 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547993 + ... + 585060.

It is an arithmetic number, because the mean of its divisors is an integer number (2625852645).

Almost surely, 2^21000004302 is an apocalyptic number.

21000004302 is an abundant number, since it is smaller than the sum of its proper divisors (21013638018).

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

21000004302 is a wasteful number, since it uses less digits than its factorization.

21000004302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136147.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 21000004302 its reverse (20340000012), we get a palindrome (41340004314).

The spelling of 21000004302 in words is "twenty-one billion, four thousand, three hundred two".