1231451143315 has 8 divisors (see below), whose sum is σ = 1477760119920. Its totient is φ = 985148416032.

The previous prime is 1231451143313. The next prime is 1231451143339. The reversal of 1231451143315 is 5133411541321.

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

It is a cyclic number.

It is not a de Polignac number, because 1231451143315 - 2¹ = 1231451143313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1231451143313) 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, 1117285 + ... + 1926454.

It is an arithmetic number, because the mean of its divisors is an integer number (184720014990).

Almost surely, 2^{1231451143315} is an apocalyptic number.

1231451143315 is a deficient number, since it is larger than the sum of its proper divisors (246308976605).

1231451143315 is an equidigital number, since it uses as much as digits as its factorization.

1231451143315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3124661.

The product of its digits is 21600, while the sum is 34.

Adding to 1231451143315 its reverse (5133411541321), we get a palindrome (6364862684636).

The spelling of 1231451143315 in words is "one trillion, two hundred thirty-one billion, four hundred fifty-one million, one hundred forty-three thousand, three hundred fifteen".