31233223069 has 2 divisors, whose sum is σ = 31233223070. Its totient is φ = 31233223068.

The previous prime is 31233223051. The next prime is 31233223159. The reversal of 31233223069 is 96032233213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26957370969 + 4275852100 = 164187^2 + 65390^2 .

It is a cyclic number.

It is not a de Polignac number, because 31233223069 - 2¹⁷ = 31233091997 is a prime.

It is a super-2 number, since 2×31233223069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31233220069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616611534 + 15616611535.

It is an arithmetic number, because the mean of its divisors is an integer number (15616611535).

Almost surely, 2^31233223069 is an apocalyptic number.

It is an amenable number.

31233223069 is a deficient number, since it is larger than the sum of its proper divisors (1).

31233223069 is an equidigital number, since it uses as much as digits as its factorization.

31233223069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 34.

The spelling of 31233223069 in words is "thirty-one billion, two hundred thirty-three million, two hundred twenty-three thousand, sixty-nine".