1252312201402 has 8 divisors (see below), whose sum is σ = 1897833954996. Its totient is φ = 619700883072.

The previous prime is 1252312201391. The next prime is 1252312201403. The reversal of 1252312201402 is 2041022132521.

It can be written as a sum of positive squares in 2 ways, for example, as 1205101168441 + 47211032961 = 1097771^2 + 217281^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1252312201403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3227608573 + ... + 3227608960.

Almost surely, 2^{1252312201402} is an apocalyptic number.

1252312201402 is a deficient number, since it is larger than the sum of its proper divisors (645521753594).

1252312201402 is an equidigital number, since it uses as much as digits as its factorization.

1252312201402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6455217632.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 1252312201402 its reverse (2041022132521), we get a palindrome (3293334333923).

The spelling of 1252312201402 in words is "one trillion, two hundred fifty-two billion, three hundred twelve million, two hundred one thousand, four hundred two".