2542111501523 has 12 divisors (see below), whose sum is σ = 2798825144640. Its totient is φ = 2307203123280.

The previous prime is 2542111501511. The next prime is 2542111501541. The reversal of 2542111501523 is 3251051112452.

It is not a de Polignac number, because 2542111501523 - 2⁶ = 2542111501459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2542111501523.

It is not an unprimeable number, because it can be changed into a prime (2542111506523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17232308 + ... + 17379201.

It is an arithmetic number, because the mean of its divisors is an integer number (233235428720).

Almost surely, 2^{2542111501523} is an apocalyptic number.

2542111501523 is a deficient number, since it is larger than the sum of its proper divisors (256713643117).

2542111501523 is a wasteful number, since it uses less digits than its factorization.

2542111501523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34612138 (or 34612127 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 2542111501523 its reverse (3251051112452), we get a palindrome (5793162613975).

The spelling of 2542111501523 in words is "two trillion, five hundred forty-two billion, one hundred eleven million, five hundred one thousand, five hundred twenty-three".