1511345031241 has 2 divisors, whose sum is σ = 1511345031242. Its totient is φ = 1511345031240.

The previous prime is 1511345031199. The next prime is 1511345031271. The reversal of 1511345031241 is 1421305431151.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1511313716025 + 31315216 = 1229355^2 + 5596^2 .

It is an emirp because it is prime and its reverse (1421305431151) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1511345031241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1511345031271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 755672515620 + 755672515621.

It is an arithmetic number, because the mean of its divisors is an integer number (755672515621).

Almost surely, 2^{1511345031241} is an apocalyptic number.

It is an amenable number.

1511345031241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1511345031241 is an equidigital number, since it uses as much as digits as its factorization.

1511345031241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 1511345031241 in words is "one trillion, five hundred eleven billion, three hundred forty-five million, thirty-one thousand, two hundred forty-one".