21141233130021 has 8 divisors (see below), whose sum is σ = 28188787174464. Its totient is φ = 14093917252800.

The previous prime is 21141233129941. The next prime is 21141233130023. The reversal of 21141233130021 is 12003133214112.

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

It is not a de Polignac number, because 21141233130021 - 2¹⁸ = 21141232867877 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21141233129973 and 21141233130000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21141233130023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59334580 + ... + 59689821.

It is an arithmetic number, because the mean of its divisors is an integer number (3523598396808).

Almost surely, 2^{21141233130021} is an apocalyptic number.

It is an amenable number.

21141233130021 is a deficient number, since it is larger than the sum of its proper divisors (7047554044443).

21141233130021 is a wasteful number, since it uses less digits than its factorization.

21141233130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119083611.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 21141233130021 its reverse (12003133214112), we get a palindrome (33144366344133).

The spelling of 21141233130021 in words is "twenty-one trillion, one hundred forty-one billion, two hundred thirty-three million, one hundred thirty thousand, twenty-one".