1121142137 has 2 divisors, whose sum is σ = 1121142138. Its totient is φ = 1121142136.

The previous prime is 1121142109. The next prime is 1121142149. The reversal of 1121142137 is 7312411211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1014040336 + 107101801 = 31844^2 + 10349^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121142137 - 2³⁰ = 47400313 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121142637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560571068 + 560571069.

It is an arithmetic number, because the mean of its divisors is an integer number (560571069).

Almost surely, 2^1121142137 is an apocalyptic number.

It is an amenable number.

1121142137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121142137 is an equidigital number, since it uses as much as digits as its factorization.

1121142137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 23.

The square root of 1121142137 is about 33483.4606485053. The cubic root of 1121142137 is about 1038.8517087546.

Adding to 1121142137 its reverse (7312411211), we get a palindrome (8433553348).

The spelling of 1121142137 in words is "one billion, one hundred twenty-one million, one hundred forty-two thousand, one hundred thirty-seven".