21041430302 has 4 divisors (see below), whose sum is σ = 31562145456. Its totient is φ = 10520715150.

The previous prime is 21041430287. The next prime is 21041430313. The reversal of 21041430302 is 20303414012.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×21041430302² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5260357574 + ... + 5260357577.

It is an arithmetic number, because the mean of its divisors is an integer number (7890536364).

Almost surely, 2^21041430302 is an apocalyptic number.

21041430302 is a deficient number, since it is larger than the sum of its proper divisors (10520715154).

21041430302 is a wasteful number, since it uses less digits than its factorization.

21041430302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10520715153.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21041430302 its reverse (20303414012), we get a palindrome (41344844314).

The spelling of 21041430302 in words is "twenty-one billion, forty-one million, four hundred thirty thousand, three hundred two".