1250012321 has 2 divisors, whose sum is σ = 1250012322. Its totient is φ = 1250012320.

The previous prime is 1250012251. The next prime is 1250012347. The reversal of 1250012321 is 1232100521.

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., 733813921 + 516198400 = 27089^2 + 22720^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250012321 - 2¹⁰ = 1250011297 is a prime.

It is a Sophie Germain 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 1250012321.

It is not a weakly prime, because it can be changed into another prime (1250012381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625006160 + 625006161.

It is an arithmetic number, because the mean of its divisors is an integer number (625006161).

Almost surely, 2^1250012321 is an apocalyptic number.

It is an amenable number.

1250012321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250012321 is an equidigital number, since it uses as much as digits as its factorization.

1250012321 is an evil number, because the sum of its binary digits is even.

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

The square root of 1250012321 is about 35355.5133041510. The cubic root of 1250012321 is about 1077.2208843096.

Adding to 1250012321 its reverse (1232100521), we get a palindrome (2482112842).

The spelling of 1250012321 in words is "one billion, two hundred fifty million, twelve thousand, three hundred twenty-one".