1231352315555 has 8 divisors (see below), whose sum is σ = 1478292308352. Its totient is φ = 984635499328.

The previous prime is 1231352315549. The next prime is 1231352315563. The reversal of 1231352315555 is 5555132531321.

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 1231352315555 - 2⁶ = 1231352315491 is a prime.

It is a Duffinian 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, 55782002 + ... + 55804071.

It is an arithmetic number, because the mean of its divisors is an integer number (184786538544).

Almost surely, 2^{1231352315555} is an apocalyptic number.

1231352315555 is a deficient number, since it is larger than the sum of its proper divisors (246939992797).

1231352315555 is a wasteful number, since it uses less digits than its factorization.

1231352315555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111588285.

The product of its digits is 337500, while the sum is 41.

Adding to 1231352315555 its reverse (5555132531321), we get a palindrome (6786484846876).

The spelling of 1231352315555 in words is "one trillion, two hundred thirty-one billion, three hundred fifty-two million, three hundred fifteen thousand, five hundred fifty-five".