110142515521 has 2 divisors, whose sum is σ = 110142515522. Its totient is φ = 110142515520.

The previous prime is 110142515471. The next prime is 110142515531. The reversal of 110142515521 is 125515241011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109782882225 + 359633296 = 331335^2 + 18964^2 .

It is a cyclic number.

It is not a de Polignac number, because 110142515521 - 2⁷ = 110142515393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 110142515521.

It is not a weakly prime, because it can be changed into another prime (110142515531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55071257760 + 55071257761.

It is an arithmetic number, because the mean of its divisors is an integer number (55071257761).

Almost surely, 2^110142515521 is an apocalyptic number.

It is an amenable number.

110142515521 is a deficient number, since it is larger than the sum of its proper divisors (1).

110142515521 is an equidigital number, since it uses as much as digits as its factorization.

110142515521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2000, while the sum is 28.

Adding to 110142515521 its reverse (125515241011), we get a palindrome (235657756532).

The spelling of 110142515521 in words is "one hundred ten billion, one hundred forty-two million, five hundred fifteen thousand, five hundred twenty-one".