531101401223 has 2 divisors, whose sum is σ = 531101401224. Its totient is φ = 531101401222.

The previous prime is 531101401199. The next prime is 531101401301. The reversal of 531101401223 is 322104101135.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531101401223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531101407223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265550700611 + 265550700612.

It is an arithmetic number, because the mean of its divisors is an integer number (265550700612).

Almost surely, 2^531101401223 is an apocalyptic number.

531101401223 is a deficient number, since it is larger than the sum of its proper divisors (1).

531101401223 is an equidigital number, since it uses as much as digits as its factorization.

531101401223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 531101401223 its reverse (322104101135), we get a palindrome (853205502358).

The spelling of 531101401223 in words is "five hundred thirty-one billion, one hundred one million, four hundred one thousand, two hundred twenty-three".