1511045512117 has 2 divisors, whose sum is σ = 1511045512118. Its totient is φ = 1511045512116.

The previous prime is 1511045512079. The next prime is 1511045512121. The reversal of 1511045512117 is 7112155401151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1445864358481 + 65181153636 = 1202441^2 + 255306^2 .

It is an emirp because it is prime and its reverse (7112155401151) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1511045512117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1511045512157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 755522756058 + 755522756059.

It is an arithmetic number, because the mean of its divisors is an integer number (755522756059).

Almost surely, 2^{1511045512117} is an apocalyptic number.

It is an amenable number.

1511045512117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1511045512117 is an equidigital number, since it uses as much as digits as its factorization.

1511045512117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7000, while the sum is 34.

The spelling of 1511045512117 in words is "one trillion, five hundred eleven billion, forty-five million, five hundred twelve thousand, one hundred seventeen".