1131320514245 has 8 divisors (see below), whose sum is σ = 1371580335384. Its totient is φ = 895725932544.

The previous prime is 1131320514217. The next prime is 1131320514253. The reversal of 1131320514245 is 5424150231311.

It can be written as a sum of positive squares in 4 ways, for example, as 389217520129 + 742102994116 = 623873^2 + 861454^2 .

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 1131320514245 - 2⁸ = 1131320513989 is a prime.

It is a super-2 number, since 2×1131320514245² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent 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, 1166309324 + ... + 1166310293.

It is an arithmetic number, because the mean of its divisors is an integer number (171447541923).

Almost surely, 2^{1131320514245} is an apocalyptic number.

It is an amenable number.

1131320514245 is a deficient number, since it is larger than the sum of its proper divisors (240259821139).

1131320514245 is an equidigital number, since it uses as much as digits as its factorization.

1131320514245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332619719.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 1131320514245 its reverse (5424150231311), we get a palindrome (6555470745556).

The spelling of 1131320514245 in words is "one trillion, one hundred thirty-one billion, three hundred twenty million, five hundred fourteen thousand, two hundred forty-five".