1331246123 has 2 divisors, whose sum is σ = 1331246124. Its totient is φ = 1331246122.

The previous prime is 1331246101. The next prime is 1331246129. The reversal of 1331246123 is 3216421331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1331246123 - 2²² = 1327051819 is a prime.

It is a super-2 number, since 2×1331246123² = 3544432480005062258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331246092 and 1331246101.

It is not a weakly prime, because it can be changed into another prime (1331246129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665623061 + 665623062.

It is an arithmetic number, because the mean of its divisors is an integer number (665623062).

Almost surely, 2^1331246123 is an apocalyptic number.

1331246123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331246123 is an equidigital number, since it uses as much as digits as its factorization.

1331246123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 26.

The square root of 1331246123 is about 36486.2456687448. The cubic root of 1331246123 is about 1100.0677983005.

Adding to 1331246123 its reverse (3216421331), we get a palindrome (4547667454).

The spelling of 1331246123 in words is "one billion, three hundred thirty-one million, two hundred forty-six thousand, one hundred twenty-three".