123200220431 has 2 divisors, whose sum is σ = 123200220432. Its totient is φ = 123200220430.

The previous prime is 123200220421. The next prime is 123200220443. The reversal of 123200220431 is 134022002321.

It is a weak prime.

It is an emirp because it is prime and its reverse (134022002321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123200220431 - 2¹⁴ = 123200204047 is a prime.

It is a super-2 number, since 2×123200220431² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123200220421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61600110215 + 61600110216.

It is an arithmetic number, because the mean of its divisors is an integer number (61600110216).

Almost surely, 2^123200220431 is an apocalyptic number.

123200220431 is a deficient number, since it is larger than the sum of its proper divisors (1).

123200220431 is an equidigital number, since it uses as much as digits as its factorization.

123200220431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 123200220431 its reverse (134022002321), we get a palindrome (257222222752).

The spelling of 123200220431 in words is "one hundred twenty-three billion, two hundred million, two hundred twenty thousand, four hundred thirty-one".