Search a number
-
+
1203022231 is a prime number
BaseRepresentation
bin100011110110100…
…1010100110010111
310002211200212020221
41013231022212113
54430433202411
6315212535211
741545343305
oct10755124627
93084625227
101203022231
11568090454
12296a81507
13162311c98
14b5ab9275
1570936071
hex47b4a997

1203022231 has 2 divisors, whose sum is σ = 1203022232. Its totient is φ = 1203022230.

The previous prime is 1203022207. The next prime is 1203022243. The reversal of 1203022231 is 1322203021.

It is a strong prime.

It is an emirp because it is prime and its reverse (1322203021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1203022231 - 27 = 1203022103 is a prime.

It is a super-2 number, since 2×12030222312 = 2894524976560434722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1203022201) 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, 601511115 + 601511116.

It is an arithmetic number, because the mean of its divisors is an integer number (601511116).

Almost surely, 21203022231 is an apocalyptic number.

1203022231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203022231 is an equidigital number, since it uses as much as digits as its factorization.

1203022231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1203022231 is about 34684.6108670690. The cubic root of 1203022231 is about 1063.5499323134.

Adding to 1203022231 its reverse (1322203021), we get a palindrome (2525225252).

The spelling of 1203022231 in words is "one billion, two hundred three million, twenty-two thousand, two hundred thirty-one".