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2313312431 is a prime number
BaseRepresentation
bin1000100111100010…
…0101100010101111
312222012220110002012
42021320211202233
514214201444211
61021314151435
7111216555053
oct21170454257
95865813065
102313312431
11a87893961
1254688257b
132ab356631
1417d335c63
15d8150d8b
hex89e258af

2313312431 has 2 divisors, whose sum is σ = 2313312432. Its totient is φ = 2313312430.

The previous prime is 2313312361. The next prime is 2313312433. The reversal of 2313312431 is 1342133132.

2313312431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2313312431 - 218 = 2313050287 is a prime.

It is a super-2 number, since 2×23133124312 = 10702828806838259522, which contains 22 as substring.

Together with 2313312433, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2313312397 and 2313312406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2313312433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156656215 + 1156656216.

It is an arithmetic number, because the mean of its divisors is an integer number (1156656216).

Almost surely, 22313312431 is an apocalyptic number.

2313312431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2313312431 is an equidigital number, since it uses as much as digits as its factorization.

2313312431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 23.

The square root of 2313312431 is about 48096.9066676850. The cubic root of 2313312431 is about 1322.5479617589.

Adding to 2313312431 its reverse (1342133132), we get a palindrome (3655445563).

The spelling of 2313312431 in words is "two billion, three hundred thirteen million, three hundred twelve thousand, four hundred thirty-one".