1252312321255 has 8 divisors (see below), whose sum is σ = 1502805081024. Its totient is φ = 1001829660000.

The previous prime is 1252312321229. The next prime is 1252312321277. The reversal of 1252312321255 is 5521232132521.

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

It is not a de Polignac number, because 1252312321255 - 2¹¹ = 1252312319207 is a prime.

It is a super-2 number, since 2×1252312321255² (a number of 25 digits) contains 22 as substring.

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 1252312321255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2249071 + ... + 2750080.

It is an arithmetic number, because the mean of its divisors is an integer number (187850635128).

Almost surely, 2^{1252312321255} is an apocalyptic number.

1252312321255 is a deficient number, since it is larger than the sum of its proper divisors (250492759769).

1252312321255 is an equidigital number, since it uses as much as digits as its factorization.

1252312321255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049257.

The product of its digits is 36000, while the sum is 34.

Adding to 1252312321255 its reverse (5521232132521), we get a palindrome (6773544453776).

The spelling of 1252312321255 in words is "one trillion, two hundred fifty-two billion, three hundred twelve million, three hundred twenty-one thousand, two hundred fifty-five".