21513424124030 has 8 divisors (see below), whose sum is σ = 38724163423272. Its totient is φ = 8605369649608.

The previous prime is 21513424124021. The next prime is 21513424124039. The reversal of 21513424124030 is 3042142431512.

It is an interprime number because it is at equal distance from previous prime (21513424124021) and next prime (21513424124039).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21513424124039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075671206192 + ... + 1075671206211.

It is an arithmetic number, because the mean of its divisors is an integer number (4840520427909).

Almost surely, 2^{21513424124030} is an apocalyptic number.

21513424124030 is a deficient number, since it is larger than the sum of its proper divisors (17210739299242).

21513424124030 is a wasteful number, since it uses less digits than its factorization.

21513424124030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151342412410.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 21513424124030 its reverse (3042142431512), we get a palindrome (24555566555542).

The spelling of 21513424124030 in words is "twenty-one trillion, five hundred thirteen billion, four hundred twenty-four million, one hundred twenty-four thousand, thirty".