Search a number
-
+
30212011223123 is a prime number
BaseRepresentation
bin1101101111010010010000…
…01100100110100001010011
310221222020111000012210120012
412313221020030212201103
512424443144333114443
6144131112323305135
76235513542142352
oct667511014464123
9127866430183505
1030212011223123
119698929789a34
12347b35951b1ab
1313b1c99022432
147663aa76b999
15375d3c989118
hex1b7a48326853

30212011223123 has 2 divisors, whose sum is σ = 30212011223124. Its totient is φ = 30212011223122.

The previous prime is 30212011223117. The next prime is 30212011223161. The reversal of 30212011223123 is 32132211021203.

It is a weak prime.

It is an emirp because it is prime and its reverse (32132211021203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30212011223123 - 26 = 30212011223059 is a prime.

It is a super-2 number, since 2×302120112231232 (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30212011223113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106005611561 + 15106005611562.

It is an arithmetic number, because the mean of its divisors is an integer number (15106005611562).

Almost surely, 230212011223123 is an apocalyptic number.

30212011223123 is a deficient number, since it is larger than the sum of its proper divisors (1).

30212011223123 is an equidigital number, since it uses as much as digits as its factorization.

30212011223123 is an odious number, because the sum of its binary digits is odd.

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

Adding to 30212011223123 its reverse (32132211021203), we get a palindrome (62344222244326).

The spelling of 30212011223123 in words is "thirty trillion, two hundred twelve billion, eleven million, two hundred twenty-three thousand, one hundred twenty-three".