1203321221371 has 2 divisors, whose sum is σ = 1203321221372. Its totient is φ = 1203321221370.

The previous prime is 1203321221279. The next prime is 1203321221387. The reversal of 1203321221371 is 1731221233021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1203321221371 - 2¹¹ = 1203321219323 is a prime.

It is not a weakly prime, because it can be changed into another prime (1203321221171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601660610685 + 601660610686.

It is an arithmetic number, because the mean of its divisors is an integer number (601660610686).

Almost surely, 2^{1203321221371} is an apocalyptic number.

1203321221371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203321221371 is an equidigital number, since it uses as much as digits as its factorization.

1203321221371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 1203321221371 its reverse (1731221233021), we get a palindrome (2934542454392).

The spelling of 1203321221371 in words is "one trillion, two hundred three billion, three hundred twenty-one million, two hundred twenty-one thousand, three hundred seventy-one".