630221146231 has 2 divisors, whose sum is σ = 630221146232. Its totient is φ = 630221146230.

The previous prime is 630221146213. The next prime is 630221146249. The reversal of 630221146231 is 132641122036.

630221146231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (630221146213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (630221146213) and next prime (630221146249).

It is a cyclic number.

It is not a de Polignac number, because 630221146231 - 2¹⁵ = 630221113463 is a prime.

It is a super-3 number, since 3×630221146231³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 630221146193 and 630221146202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630221146211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315110573115 + 315110573116.

It is an arithmetic number, because the mean of its divisors is an integer number (315110573116).

Almost surely, 2^630221146231 is an apocalyptic number.

630221146231 is a deficient number, since it is larger than the sum of its proper divisors (1).

630221146231 is an equidigital number, since it uses as much as digits as its factorization.

630221146231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 630221146231 its reverse (132641122036), we get a palindrome (762862268267).

The spelling of 630221146231 in words is "six hundred thirty billion, two hundred twenty-one million, one hundred forty-six thousand, two hundred thirty-one".