Search a number
-
+
31312101230323 is a prime number
BaseRepresentation
bin1110001111010011010101…
…01010111100011011110011
311002212102000011122101221221
413013221222222330123303
513101004140403332243
6150332325234125511
76411140026002514
oct707515252743363
9132772004571857
1031312101230323
119a82429926741
1236185b3420897
1314619456529b4
147a3729b84a0b
153947762b8bed
hex1c7a6aabc6f3

31312101230323 has 2 divisors, whose sum is σ = 31312101230324. Its totient is φ = 31312101230322.

The previous prime is 31312101230317. The next prime is 31312101230363. The reversal of 31312101230323 is 32303210121313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31312101230323 - 213 = 31312101222131 is a prime.

It is not a weakly prime, because it can be changed into another prime (31312101230363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656050615161 + 15656050615162.

It is an arithmetic number, because the mean of its divisors is an integer number (15656050615162).

Almost surely, 231312101230323 is an apocalyptic number.

31312101230323 is a deficient number, since it is larger than the sum of its proper divisors (1).

31312101230323 is an equidigital number, since it uses as much as digits as its factorization.

31312101230323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31312101230323 its reverse (32303210121313), we get a palindrome (63615311351636).

The spelling of 31312101230323 in words is "thirty-one trillion, three hundred twelve billion, one hundred one million, two hundred thirty thousand, three hundred twenty-three".