1223386631 has 2 divisors, whose sum is σ = 1223386632. Its totient is φ = 1223386630.

The previous prime is 1223386603. The next prime is 1223386693. The reversal of 1223386631 is 1366833221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223386631 - 2²² = 1219192327 is a prime.

It is a super-2 number, since 2×1223386631² = 2993349697819060322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1223386591 and 1223386600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223386831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611693315 + 611693316.

It is an arithmetic number, because the mean of its divisors is an integer number (611693316).

Almost surely, 2^1223386631 is an apocalyptic number.

1223386631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223386631 is an equidigital number, since it uses as much as digits as its factorization.

1223386631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 35.

The square root of 1223386631 is about 34976.9442776238. The cubic root of 1223386631 is about 1069.5175368791.

The spelling of 1223386631 in words is "one billion, two hundred twenty-three million, three hundred eighty-six thousand, six hundred thirty-one".