123304034431 has 2 divisors, whose sum is σ = 123304034432. Its totient is φ = 123304034430.

The previous prime is 123304034423. The next prime is 123304034467. The reversal of 123304034431 is 134430403321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123304034431 - 2³ = 123304034423 is a prime.

It is a super-2 number, since 2×123304034431² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123304034431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123304034731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61652017215 + 61652017216.

It is an arithmetic number, because the mean of its divisors is an integer number (61652017216).

Almost surely, 2^123304034431 is an apocalyptic number.

123304034431 is a deficient number, since it is larger than the sum of its proper divisors (1).

123304034431 is an equidigital number, since it uses as much as digits as its factorization.

123304034431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 123304034431 its reverse (134430403321), we get a palindrome (257734437752).

The spelling of 123304034431 in words is "one hundred twenty-three billion, three hundred four million, thirty-four thousand, four hundred thirty-one".