312121452453 has 16 divisors (see below), whose sum is σ = 418851048000. Its totient is φ = 206736656256.

The previous prime is 312121452451. The next prime is 312121452457. The reversal of 312121452453 is 354254121213.

It is not a de Polignac number, because 312121452453 - 2¹ = 312121452451 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312121452451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6688026 + ... + 6734532.

It is an arithmetic number, because the mean of its divisors is an integer number (26178190500).

Almost surely, 2^312121452453 is an apocalyptic number.

It is an amenable number.

312121452453 is a deficient number, since it is larger than the sum of its proper divisors (106729595547).

312121452453 is a wasteful number, since it uses less digits than its factorization.

312121452453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60916.

The product of its digits is 28800, while the sum is 33.

Adding to 312121452453 its reverse (354254121213), we get a palindrome (666375573666).

The spelling of 312121452453 in words is "three hundred twelve billion, one hundred twenty-one million, four hundred fifty-two thousand, four hundred fifty-three".