1021230121325 has 12 divisors (see below), whose sum is σ = 1267688485140. Its totient is φ = 816104655360.

The previous prime is 1021230121277. The next prime is 1021230121349. The reversal of 1021230121325 is 5231210321201.

1021230121325 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 6 ways, for example, as 65657400169 + 955572721156 = 256237^2 + 977534^2 .

It is not a de Polignac number, because 1021230121325 - 2¹⁰ = 1021230120301 is a prime.

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 1021230121325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21962354 + ... + 22008803.

It is an arithmetic number, because the mean of its divisors is an integer number (105640707095).

Almost surely, 2^{1021230121325} is an apocalyptic number.

It is an amenable number.

1021230121325 is a deficient number, since it is larger than the sum of its proper divisors (246458363815).

1021230121325 is an equidigital number, since it uses as much as digits as its factorization.

1021230121325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43972096 (or 43972091 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 1021230121325 its reverse (5231210321201), we get a palindrome (6252440442526).

The spelling of 1021230121325 in words is "one trillion, twenty-one billion, two hundred thirty million, one hundred twenty-one thousand, three hundred twenty-five".