31232221100123 has 2 divisors, whose sum is σ = 31232221100124. Its totient is φ = 31232221100122.

The previous prime is 31232221100083. The next prime is 31232221100189. The reversal of 31232221100123 is 32100112223213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31232221100123 - 2⁸ = 31232221099867 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (31232221100023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616110550061 + 15616110550062.

It is an arithmetic number, because the mean of its divisors is an integer number (15616110550062).

Almost surely, 2^{31232221100123} is an apocalyptic number.

31232221100123 is a deficient number, since it is larger than the sum of its proper divisors (1).

31232221100123 is an equidigital number, since it uses as much as digits as its factorization.

31232221100123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31232221100123 its reverse (32100112223213), we get a palindrome (63332333323336).

The spelling of 31232221100123 in words is "thirty-one trillion, two hundred thirty-two billion, two hundred twenty-one million, one hundred thousand, one hundred twenty-three".