1020144210125 has 8 divisors (see below), whose sum is σ = 1273139974392. Its totient is φ = 816115368000.

The previous prime is 1020144210121. The next prime is 1020144210149. The reversal of 1020144210125 is 5210124410201.

1020144210125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6671132329 + 1013473077796 = 81677^2 + 1006714^2 .

It is not a de Polignac number, because 1020144210125 - 2² = 1020144210121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020144210125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020144210121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4080576716 + ... + 4080576965.

It is an arithmetic number, because the mean of its divisors is an integer number (159142496799).

Almost surely, 2^{1020144210125} is an apocalyptic number.

It is an amenable number.

1020144210125 is a deficient number, since it is larger than the sum of its proper divisors (252995764267).

1020144210125 is an frugal number, since it uses more digits than its factorization.

1020144210125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8161153696 (or 8161153686 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 1020144210125 its reverse (5210124410201), we get a palindrome (6230268620326).

The spelling of 1020144210125 in words is "one trillion, twenty billion, one hundred forty-four million, two hundred ten thousand, one hundred twenty-five".