1423111031 has 2 divisors, whose sum is σ = 1423111032. Its totient is φ = 1423111030.

The previous prime is 1423111009. The next prime is 1423111037. The reversal of 1423111031 is 1301113241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1423111031 - 2⁶ = 1423110967 is a prime.

It is a super-2 number, since 2×1423111031² = 4050490013107765922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423111037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711555515 + 711555516.

It is an arithmetic number, because the mean of its divisors is an integer number (711555516).

Almost surely, 2^1423111031 is an apocalyptic number.

1423111031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423111031 is an equidigital number, since it uses as much as digits as its factorization.

1423111031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1423111031 is about 37724.1438736521. The cubic root of 1423111031 is about 1124.8111040213.

Adding to 1423111031 its reverse (1301113241), we get a palindrome (2724224272).

The spelling of 1423111031 in words is "one billion, four hundred twenty-three million, one hundred eleven thousand, thirty-one".