231330442301321 has 6 divisors (see below), whose sum is σ = 254272304347866. Its totient is φ = 210300402092000.

The previous prime is 231330442301317. The next prime is 231330442301339. The reversal of 231330442301321 is 123103244033132.

231330442301321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 179705714350096 + 51624727951225 = 13405436^2 + 7185035^2 .

It is not a de Polignac number, because 231330442301321 - 2² = 231330442301317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231330442301311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 955910918480 + ... + 955910918721.

It is an arithmetic number, because the mean of its divisors is an integer number (42378717391311).

Almost surely, 2^{231330442301321} is an apocalyptic number.

It is an amenable number.

231330442301321 is a deficient number, since it is larger than the sum of its proper divisors (22941862046545).

231330442301321 is a wasteful number, since it uses less digits than its factorization.

231330442301321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911821837223 (or 1911821837212 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 231330442301321 its reverse (123103244033132), we get a palindrome (354433686334453).

The spelling of 231330442301321 in words is "two hundred thirty-one trillion, three hundred thirty billion, four hundred forty-two million, three hundred one thousand, three hundred twenty-one".