21033230321131 has 8 divisors (see below), whose sum is σ = 24092239313664. Its totient is φ = 17987786779560.

The previous prime is 21033230321119. The next prime is 21033230321137. The reversal of 21033230321131 is 13112303233012.

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

It is a cyclic number.

It is not a de Polignac number, because 21033230321131 - 2⁵ = 21033230321099 is a prime.

It is a super-2 number, since 2×21033230321131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21033230321096 and 21033230321105.

It is not an unprimeable number, because it can be changed into a prime (21033230321137) 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, 3391359415 + ... + 3391365616.

It is an arithmetic number, because the mean of its divisors is an integer number (3011529914208).

Almost surely, 2^{21033230321131} is an apocalyptic number.

21033230321131 is a deficient number, since it is larger than the sum of its proper divisors (3059008992533).

21033230321131 is an equidigital number, since it uses as much as digits as its factorization.

21033230321131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6782725481.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 21033230321131 its reverse (13112303233012), we get a palindrome (34145533554143).

The spelling of 21033230321131 in words is "twenty-one trillion, thirty-three billion, two hundred thirty million, three hundred twenty-one thousand, one hundred thirty-one".