21433410131384 has 32 divisors (see below), whose sum is σ = 40882094496000. Its totient is φ = 10532260500960.

The previous prime is 21433410131363. The next prime is 21433410131429. The reversal of 21433410131384 is 48313101433412.

It is a super-2 number, since 2×21433410131384² (a number of 27 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 in 7 ways as a sum of consecutive naturals, for example, 46158434 + ... + 46620465.

It is an arithmetic number, because the mean of its divisors is an integer number (1277565453000).

Almost surely, 2^{21433410131384} is an apocalyptic number.

It is an amenable number.

21433410131384 is a deficient number, since it is larger than the sum of its proper divisors (19448684364616).

21433410131384 is a wasteful number, since it uses less digits than its factorization.

21433410131384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92779403 (or 92779399 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

Adding to 21433410131384 its reverse (48313101433412), we get a palindrome (69746511564796).

The spelling of 21433410131384 in words is "twenty-one trillion, four hundred thirty-three billion, four hundred ten million, one hundred thirty-one thousand, three hundred eighty-four".