21003022232331 has 8 divisors (see below), whose sum is σ = 28004313339600. Its totient is φ = 14001872973312.

The previous prime is 21003022232299. The next prime is 21003022232399. The reversal of 21003022232331 is 13323222030012.

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

It is not a de Polignac number, because 21003022232331 - 2⁵ = 21003022232299 is a prime.

It is a super-2 number, since 2×21003022232331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21003022232431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35116090 + ... + 35709183.

It is an arithmetic number, because the mean of its divisors is an integer number (3500539167450).

Almost surely, 2^{21003022232331} is an apocalyptic number.

21003022232331 is a deficient number, since it is larger than the sum of its proper divisors (7001291107269).

21003022232331 is an equidigital number, since it uses as much as digits as its factorization.

21003022232331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70924125.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21003022232331 its reverse (13323222030012), we get a palindrome (34326244262343).

The spelling of 21003022232331 in words is "twenty-one trillion, three billion, twenty-two million, two hundred thirty-two thousand, three hundred thirty-one".