1130121081457 has 2 divisors, whose sum is σ = 1130121081458. Its totient is φ = 1130121081456.

The previous prime is 1130121081451. The next prime is 1130121081517. The reversal of 1130121081457 is 7541801210311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1093103706256 + 37017375201 = 1045516^2 + 192399^2 .

It is an emirp because it is prime and its reverse (7541801210311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1130121081457 is a prime.

It is not a weakly prime, because it can be changed into another prime (1130121081451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565060540728 + 565060540729.

It is an arithmetic number, because the mean of its divisors is an integer number (565060540729).

Almost surely, 2^{1130121081457} is an apocalyptic number.

It is an amenable number.

1130121081457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130121081457 is an equidigital number, since it uses as much as digits as its factorization.

1130121081457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 34.

Adding to 1130121081457 its reverse (7541801210311), we get a palindrome (8671922291768).

The spelling of 1130121081457 in words is "one trillion, one hundred thirty billion, one hundred twenty-one million, eighty-one thousand, four hundred fifty-seven".