1121230320137 has 2 divisors, whose sum is σ = 1121230320138. Its totient is φ = 1121230320136.

The previous prime is 1121230320113. The next prime is 1121230320251. The reversal of 1121230320137 is 7310230321211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 779413528336 + 341816791801 = 882844^2 + 584651^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121230320137 - 2¹⁶ = 1121230254601 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121230322137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560615160068 + 560615160069.

It is an arithmetic number, because the mean of its divisors is an integer number (560615160069).

Almost surely, 2^{1121230320137} is an apocalyptic number.

It is an amenable number.

1121230320137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121230320137 is an equidigital number, since it uses as much as digits as its factorization.

1121230320137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

Adding to 1121230320137 its reverse (7310230321211), we get a palindrome (8431460641348).

The spelling of 1121230320137 in words is "one trillion, one hundred twenty-one billion, two hundred thirty million, three hundred twenty thousand, one hundred thirty-seven".