1223352031 has 32 divisors (see below), whose sum is σ = 1435150080. Its totient is φ = 1031097600.

The previous prime is 1223352029. The next prime is 1223352043. The reversal of 1223352031 is 1302533221.

It is a cyclic number.

It is not a de Polignac number, because 1223352031 - 2¹ = 1223352029 is a prime.

It is a super-2 number, since 2×1223352031² = 2993180383503649922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223351993 and 1223352011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223352131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2761296 + ... + 2761738.

It is an arithmetic number, because the mean of its divisors is an integer number (44848440).

Almost surely, 2^1223352031 is an apocalyptic number.

1223352031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1223352031 is a deficient number, since it is larger than the sum of its proper divisors (211798049).

1223352031 is a wasteful number, since it uses less digits than its factorization.

With its successor (1223352032) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (727).

1223352031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1223352031 is about 34976.4496625944. The cubic root of 1223352031 is about 1069.5074540334.

Adding to 1223352031 its reverse (1302533221), we get a palindrome (2525885252).

The spelling of 1223352031 in words is "one billion, two hundred twenty-three million, three hundred fifty-two thousand, thirty-one".