2130321212231 has 2 divisors, whose sum is σ = 2130321212232. Its totient is φ = 2130321212230.

The previous prime is 2130321212219. The next prime is 2130321212251. The reversal of 2130321212231 is 1322121230312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2130321212231 is a prime.

It is a super-2 number, since 2×2130321212231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2130321212197 and 2130321212206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2130321212251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065160606115 + 1065160606116.

It is an arithmetic number, because the mean of its divisors is an integer number (1065160606116).

Almost surely, 2^{2130321212231} is an apocalyptic number.

2130321212231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130321212231 is an equidigital number, since it uses as much as digits as its factorization.

2130321212231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2130321212231 its reverse (1322121230312), we get a palindrome (3452442442543).

The spelling of 2130321212231 in words is "two trillion, one hundred thirty billion, three hundred twenty-one million, two hundred twelve thousand, two hundred thirty-one".