1200122323357 has 2 divisors, whose sum is σ = 1200122323358. Its totient is φ = 1200122323356.

The previous prime is 1200122323319. The next prime is 1200122323451. The reversal of 1200122323357 is 7533232210021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 813295545241 + 386826778116 = 901829^2 + 621954^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200122323357 - 2¹⁹ = 1200121799069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200122326357) 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, 600061161678 + 600061161679.

It is an arithmetic number, because the mean of its divisors is an integer number (600061161679).

Almost surely, 2^{1200122323357} is an apocalyptic number.

It is an amenable number.

1200122323357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200122323357 is an equidigital number, since it uses as much as digits as its factorization.

1200122323357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 31.

Adding to 1200122323357 its reverse (7533232210021), we get a palindrome (8733354533378).

The spelling of 1200122323357 in words is "one trillion, two hundred billion, one hundred twenty-two million, three hundred twenty-three thousand, three hundred fifty-seven".