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30002131223 is a prime number
BaseRepresentation
bin11011111100010001…
…000011000100010111
32212102220022011212022
4123330101003010113
5442421021144343
621441025443355
72111323623221
oct337421030427
985386264768
1030002131223
11117a646a279
1259937a055b
132aa196018c
141648841411
15ba8dea568
hex6fc443117

30002131223 has 2 divisors, whose sum is σ = 30002131224. Its totient is φ = 30002131222.

The previous prime is 30002131213. The next prime is 30002131231. The reversal of 30002131223 is 32213120003.

It is a strong prime.

It is an emirp because it is prime and its reverse (32213120003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30002131223 - 210 = 30002130199 is a prime.

It is a super-2 number, since 2×300021312232 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30002131213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15001065611 + 15001065612.

It is an arithmetic number, because the mean of its divisors is an integer number (15001065612).

Almost surely, 230002131223 is an apocalyptic number.

30002131223 is a deficient number, since it is larger than the sum of its proper divisors (1).

30002131223 is an equidigital number, since it uses as much as digits as its factorization.

30002131223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30002131223 its reverse (32213120003), we get a palindrome (62215251226).

The spelling of 30002131223 in words is "thirty billion, two million, one hundred thirty-one thousand, two hundred twenty-three".