1203122222321 has 2 divisors, whose sum is σ = 1203122222322. Its totient is φ = 1203122222320.

The previous prime is 1203122222279. The next prime is 1203122222431. The reversal of 1203122222321 is 1232222213021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 751968199921 + 451154022400 = 867161^2 + 671680^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203122222321 - 2⁶ = 1203122222257 is a prime.

It is not a weakly prime, because it can be changed into another prime (1203122225321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601561111160 + 601561111161.

It is an arithmetic number, because the mean of its divisors is an integer number (601561111161).

Almost surely, 2^{1203122222321} is an apocalyptic number.

It is an amenable number.

1203122222321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203122222321 is an equidigital number, since it uses as much as digits as its factorization.

1203122222321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1203122222321 its reverse (1232222213021), we get a palindrome (2435344435342).

The spelling of 1203122222321 in words is "one trillion, two hundred three billion, one hundred twenty-two million, two hundred twenty-two thousand, three hundred twenty-one".