1023250121 has 2 divisors, whose sum is σ = 1023250122. Its totient is φ = 1023250120.

The previous prime is 1023250103. The next prime is 1023250127. The reversal of 1023250121 is 1210523201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1018567225 + 4682896 = 31915^2 + 2164^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023250121 - 2⁶ = 1023250057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1023250121.

It is not a weakly prime, because it can be changed into another prime (1023250127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511625060 + 511625061.

It is an arithmetic number, because the mean of its divisors is an integer number (511625061).

Almost surely, 2^1023250121 is an apocalyptic number.

It is an amenable number.

1023250121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023250121 is an equidigital number, since it uses as much as digits as its factorization.

1023250121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1023250121 is about 31988.2809947643. The cubic root of 1023250121 is about 1007.6907412037.

Adding to 1023250121 its reverse (1210523201), we get a palindrome (2233773322).

The spelling of 1023250121 in words is "one billion, twenty-three million, two hundred fifty thousand, one hundred twenty-one".