1212331253 has 8 divisors (see below), whose sum is σ = 1386091200. Its totient is φ = 1038713760.

The previous prime is 1212331243. The next prime is 1212331273. The reversal of 1212331253 is 3521332121.

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

It is not a de Polignac number, because 1212331253 - 2⁶ = 1212331189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212331213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16703 + ... + 51996.

It is an arithmetic number, because the mean of its divisors is an integer number (173261400).

Almost surely, 2^1212331253 is an apocalyptic number.

It is an amenable number.

1212331253 is a deficient number, since it is larger than the sum of its proper divisors (173759947).

1212331253 is an equidigital number, since it uses as much as digits as its factorization.

1212331253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71227.

The product of its digits is 1080, while the sum is 23.

The square root of 1212331253 is about 34818.5475429404. The cubic root of 1212331253 is about 1066.2861471592.

Adding to 1212331253 its reverse (3521332121), we get a palindrome (4733663374).

The spelling of 1212331253 in words is "one billion, two hundred twelve million, three hundred thirty-one thousand, two hundred fifty-three".