31220224124123 has 2 divisors, whose sum is σ = 31220224124124. Its totient is φ = 31220224124122.

The previous prime is 31220224124071. The next prime is 31220224124273. The reversal of 31220224124123 is 32142142202213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31220224124123 - 2⁶ = 31220224124059 is a prime.

It is not a weakly prime, because it can be changed into another prime (31220224126123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15610112062061 + 15610112062062.

It is an arithmetic number, because the mean of its divisors is an integer number (15610112062062).

Almost surely, 2^{31220224124123} is an apocalyptic number.

31220224124123 is a deficient number, since it is larger than the sum of its proper divisors (1).

31220224124123 is an equidigital number, since it uses as much as digits as its factorization.

31220224124123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 31220224124123 its reverse (32142142202213), we get a palindrome (63362366326336).

The spelling of 31220224124123 in words is "thirty-one trillion, two hundred twenty billion, two hundred twenty-four million, one hundred twenty-four thousand, one hundred twenty-three".