1121265426137 has 2 divisors, whose sum is σ = 1121265426138. Its totient is φ = 1121265426136.

The previous prime is 1121265426103. The next prime is 1121265426139. The reversal of 1121265426137 is 7316245621211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1098511513801 + 22753912336 = 1048099^2 + 150844^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121265426137 - 2²⁶ = 1121198317273 is a prime.

Together with 1121265426139, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121265426094 and 1121265426103.

It is not a weakly prime, because it can be changed into another prime (1121265426139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560632713068 + 560632713069.

It is an arithmetic number, because the mean of its divisors is an integer number (560632713069).

Almost surely, 2^{1121265426137} is an apocalyptic number.

It is an amenable number.

1121265426137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121265426137 is an equidigital number, since it uses as much as digits as its factorization.

1121265426137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The spelling of 1121265426137 in words is "one trillion, one hundred twenty-one billion, two hundred sixty-five million, four hundred twenty-six thousand, one hundred thirty-seven".