Search a number
-
+
31210114211 is a prime number
BaseRepresentation
bin11101000100010001…
…001000110010100011
32222120002100001222222
4131010101020302203
51002404242123321
622200541021255
72153262410423
oct350421106243
988502301888
1031210114211
1112266328821
12607025482b
132c34cbb103
14172104c483
15c29eb13ab
hex744448ca3

31210114211 has 2 divisors, whose sum is σ = 31210114212. Its totient is φ = 31210114210.

The previous prime is 31210114129. The next prime is 31210114217. The reversal of 31210114211 is 11241101213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31210114211 - 214 = 31210097827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31210114211.

It is not a weakly prime, because it can be changed into another prime (31210114217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15605057105 + 15605057106.

It is an arithmetic number, because the mean of its divisors is an integer number (15605057106).

Almost surely, 231210114211 is an apocalyptic number.

31210114211 is a deficient number, since it is larger than the sum of its proper divisors (1).

31210114211 is an equidigital number, since it uses as much as digits as its factorization.

31210114211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 31210114211 its reverse (11241101213), we get a palindrome (42451215424).

The spelling of 31210114211 in words is "thirty-one billion, two hundred ten million, one hundred fourteen thousand, two hundred eleven".