Search a number
-
+
3212312123081 is a prime number
BaseRepresentation
bin101110101111101100101…
…110010001011011001001
3102101002112112222121200002
4232233230232101123021
5410112303400414311
610455414341052345
7451040042345465
oct56575456213311
912332475877602
103212312123081
1110293744a3206
1243a6989b70b5
131a3bc58676b9
14b16962434a5
155885da3e93b
hex2ebecb916c9

3212312123081 has 2 divisors, whose sum is σ = 3212312123082. Its totient is φ = 3212312123080.

The previous prime is 3212312123057. The next prime is 3212312123117. The reversal of 3212312123081 is 1803212132123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2181307455625 + 1031004667456 = 1476925^2 + 1015384^2 .

It is an emirp because it is prime and its reverse (1803212132123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3212312123081 - 214 = 3212312106697 is a prime.

It is a super-2 number, since 2×32123121230812 (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3212312123021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606156061540 + 1606156061541.

It is an arithmetic number, because the mean of its divisors is an integer number (1606156061541).

Almost surely, 23212312123081 is an apocalyptic number.

It is an amenable number.

3212312123081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3212312123081 is an equidigital number, since it uses as much as digits as its factorization.

3212312123081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 3212312123081 in words is "three trillion, two hundred twelve billion, three hundred twelve million, one hundred twenty-three thousand, eighty-one".