1031223113 has 2 divisors, whose sum is σ = 1031223114. Its totient is φ = 1031223112.

The previous prime is 1031223097. The next prime is 1031223121. The reversal of 1031223113 is 3113221301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 946362169 + 84860944 = 30763^2 + 9212^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031223113 - 2⁴ = 1031223097 is a prime.

It is a super-2 number, since 2×1031223113² = 2126842217570821538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1031223091 and 1031223100.

It is not a weakly prime, because it can be changed into another prime (1031223143) 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, 515611556 + 515611557.

It is an arithmetic number, because the mean of its divisors is an integer number (515611557).

Almost surely, 2^1031223113 is an apocalyptic number.

It is an amenable number.

1031223113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031223113 is an equidigital number, since it uses as much as digits as its factorization.

1031223113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1031223113 is about 32112.6628139119. The cubic root of 1031223113 is about 1010.3012247301.

Adding to 1031223113 its reverse (3113221301), we get a palindrome (4144444414).

The spelling of 1031223113 in words is "one billion, thirty-one million, two hundred twenty-three thousand, one hundred thirteen".