123235358551 has 2 divisors, whose sum is σ = 123235358552. Its totient is φ = 123235358550.

The previous prime is 123235358539. The next prime is 123235358591. The reversal of 123235358551 is 155853532321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123235358551 - 2⁷ = 123235358423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123235358498 and 123235358507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123235358501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61617679275 + 61617679276.

It is an arithmetic number, because the mean of its divisors is an integer number (61617679276).

Almost surely, 2^123235358551 is an apocalyptic number.

123235358551 is a deficient number, since it is larger than the sum of its proper divisors (1).

123235358551 is an equidigital number, since it uses as much as digits as its factorization.

123235358551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540000, while the sum is 43.

The spelling of 123235358551 in words is "one hundred twenty-three billion, two hundred thirty-five million, three hundred fifty-eight thousand, five hundred fifty-one".