2631111120541 has 2 divisors, whose sum is σ = 2631111120542. Its totient is φ = 2631111120540.

The previous prime is 2631111120527. The next prime is 2631111120553. The reversal of 2631111120541 is 1450211111362.

It is a happy number.

2631111120541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2628464532516 + 2646588025 = 1621254^2 + 51445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2631111120541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2631111123541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315555560270 + 1315555560271.

It is an arithmetic number, because the mean of its divisors is an integer number (1315555560271).

Almost surely, 2^{2631111120541} is an apocalyptic number.

It is an amenable number.

2631111120541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2631111120541 is an equidigital number, since it uses as much as digits as its factorization.

2631111120541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 28.

The spelling of 2631111120541 in words is "two trillion, six hundred thirty-one billion, one hundred eleven million, one hundred twenty thousand, five hundred forty-one".