Search a number
-
+
1223301031 is a prime number
BaseRepresentation
bin100100011101010…
…0001011110100111
310011020212010112121
41020322201132213
510001131113111
6321215330411
742212613211
oct11072413647
93136763477
101223301031
11578581197
122a1820a07
13166592284
14b86775b1
15725de871
hex48ea17a7

1223301031 has 2 divisors, whose sum is σ = 1223301032. Its totient is φ = 1223301030.

The previous prime is 1223301019. The next prime is 1223301043. The reversal of 1223301031 is 1301033221.

It is a balanced prime because it is at equal distance from previous prime (1223301019) and next prime (1223301043).

It is an emirp because it is prime and its reverse (1301033221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223301031 - 25 = 1223300999 is a prime.

It is a super-2 number, since 2×12233010312 = 2992930824891325922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1223300996 and 1223301014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223301071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611650515 + 611650516.

It is an arithmetic number, because the mean of its divisors is an integer number (611650516).

Almost surely, 21223301031 is an apocalyptic number.

1223301031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223301031 is an equidigital number, since it uses as much as digits as its factorization.

1223301031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1223301031 is about 34975.7205930057. The cubic root of 1223301031 is about 1069.4925916889.

Adding to 1223301031 its reverse (1301033221), we get a palindrome (2524334252).

The spelling of 1223301031 in words is "one billion, two hundred twenty-three million, three hundred one thousand, thirty-one".