1023216125 has 8 divisors (see below), whose sum is σ = 1276973880. Its totient is φ = 818572800.

The previous prime is 1023216119. The next prime is 1023216127. The reversal of 1023216125 is 5216123201.

1023216125 is digitally balanced in base 6, 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 216031204 + 807184921 = 14698^2 + 28411^2 .

It is not a de Polignac number, because 1023216125 - 2⁴ = 1023216109 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 1023216125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023216127) 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, 4092740 + ... + 4092989.

It is an arithmetic number, because the mean of its divisors is an integer number (159621735).

Almost surely, 2^1023216125 is an apocalyptic number.

It is an amenable number.

1023216125 is a deficient number, since it is larger than the sum of its proper divisors (253757755).

1023216125 is an frugal number, since it uses more digits than its factorization.

1023216125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8185744 (or 8185734 counting only the distinct ones).

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

The square root of 1023216125 is about 31987.7496082485. The cubic root of 1023216125 is about 1007.6795813927.

Adding to 1023216125 its reverse (5216123201), we get a palindrome (6239339326).

The spelling of 1023216125 in words is "one billion, twenty-three million, two hundred sixteen thousand, one hundred twenty-five".