1252121552303 has 6 divisors (see below), whose sum is σ = 1330108362096. Its totient is φ = 1178467343072.

The previous prime is 1252121552287. The next prime is 1252121552351. The reversal of 1252121552303 is 3032551212521.

It is not a de Polignac number, because 1252121552303 - 2⁴ = 1252121552287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1252121552303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252421552303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2166299975 + ... + 2166300552.

It is an arithmetic number, because the mean of its divisors is an integer number (221684727016).

Almost surely, 2^{1252121552303} is an apocalyptic number.

1252121552303 is a deficient number, since it is larger than the sum of its proper divisors (77986809793).

1252121552303 is an equidigital number, since it uses as much as digits as its factorization.

1252121552303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4332600561 (or 4332600544 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 1252121552303 its reverse (3032551212521), we get a palindrome (4284672764824).

The spelling of 1252121552303 in words is "one trillion, two hundred fifty-two billion, one hundred twenty-one million, five hundred fifty-two thousand, three hundred three".