1351123 has 2 divisors, whose sum is σ = 1351124. Its totient is φ = 1351122.

The previous prime is 1351121. The next prime is 1351127. The reversal of 1351123 is 3211531.

It is a weak prime.

It is an emirp because it is prime and its reverse (3211531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1351123 - 2¹ = 1351121 is a prime.

It is a super-2 number, since 2×1351123² = 3651066722258, which contains 22 as substring.

Together with 1351121, it forms a pair of twin primes.

1351123 is a lucky number.

It is equal to p₁₀₃₆₃₃ and since 1351123 and 103633 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 1351097 and 1351106.

It is not a weakly prime, because it can be changed into another prime (1351121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675561 + 675562.

It is an arithmetic number, because the mean of its divisors is an integer number (675562).

2^1351123 is an apocalyptic number.

1351123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351123 is an equidigital number, since it uses as much as digits as its factorization.

1351123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90, while the sum is 16.

The square root of 1351123 is about 1162.3781656587. The cubic root of 1351123 is about 110.5515821498.

Adding to 1351123 its reverse (3211531), we get a palindrome (4562654).

The spelling of 1351123 in words is "one million, three hundred fifty-one thousand, one hundred twenty-three".