1215443122353 has 16 divisors (see below), whose sum is σ = 1834631130240. Its totient is φ = 795006821232.

The previous prime is 1215443122337. The next prime is 1215443122409. The reversal of 1215443122353 is 3532213445121.

1215443122353 is a `hidden beast` number, since 1 + 2 + 154 + 431 + 2 + 23 + 53 = 666.

It is not a de Polignac number, because 1215443122353 - 2⁴ = 1215443122337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1215443122253) 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, 424681701 + ... + 424684562.

It is an arithmetic number, because the mean of its divisors is an integer number (114664445640).

Almost surely, 2^{1215443122353} is an apocalyptic number.

It is an amenable number.

1215443122353 is a deficient number, since it is larger than the sum of its proper divisors (619188007887).

1215443122353 is an equidigital number, since it uses as much as digits as its factorization.

1215443122353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849366325 (or 849366319 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

Adding to 1215443122353 its reverse (3532213445121), we get a palindrome (4747656567474).

The spelling of 1215443122353 in words is "one trillion, two hundred fifteen billion, four hundred forty-three million, one hundred twenty-two thousand, three hundred fifty-three".