21411141236 has 12 divisors (see below), whose sum is σ = 37490524512. Its totient is φ = 10699562808.

The previous prime is 21411141151. The next prime is 21411141239. The reversal of 21411141236 is 63214111412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21411141239) 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 3 ways as a sum of consecutive naturals, for example, 1493930 + ... + 1508193.

It is an arithmetic number, because the mean of its divisors is an integer number (3124210376).

Almost surely, 2^21411141236 is an apocalyptic number.

It is an amenable number.

21411141236 is a deficient number, since it is larger than the sum of its proper divisors (16079383276).

21411141236 is a wasteful number, since it uses less digits than its factorization.

21411141236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003910 (or 3003908 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

Adding to 21411141236 its reverse (63214111412), we get a palindrome (84625252648).

The spelling of 21411141236 in words is "twenty-one billion, four hundred eleven million, one hundred forty-one thousand, two hundred thirty-six".