1131320521315 has 8 divisors (see below), whose sum is σ = 1401377678208. Its totient is φ = 875861048640.

The previous prime is 1131320521291. The next prime is 1131320521339. The reversal of 1131320521315 is 5131250231311.

It is an interprime number because it is at equal distance from previous prime (1131320521291) and next prime (1131320521339).

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

It is not a de Polignac number, because 1131320521315 - 2⁷ = 1131320521187 is a prime.

It is a super-2 number, since 2×1131320521315² (a number of 25 digits) contains 22 as substring.

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, 3649420882 + ... + 3649421191.

It is an arithmetic number, because the mean of its divisors is an integer number (175172209776).

Almost surely, 2^{1131320521315} is an apocalyptic number.

1131320521315 is a deficient number, since it is larger than the sum of its proper divisors (270057156893).

1131320521315 is an equidigital number, since it uses as much as digits as its factorization.

1131320521315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7298842109.

The product of its (nonzero) digits is 2700, while the sum is 28.

Adding to 1131320521315 its reverse (5131250231311), we get a palindrome (6262570752626).

The spelling of 1131320521315 in words is "one trillion, one hundred thirty-one billion, three hundred twenty million, five hundred twenty-one thousand, three hundred fifteen".