1131320046631 has 8 divisors (see below), whose sum is σ = 1192465998720. Its totient is φ = 1070334373752.

The previous prime is 1131320046617. The next prime is 1131320046641. The reversal of 1131320046631 is 1366400231311.

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 1131320046631 - 2⁷ = 1131320046503 is a prime.

It is a super-2 number, since 2×1131320046631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131320046593 and 1131320046602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131320046641) 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, 40055305 + ... + 40083538.

It is an arithmetic number, because the mean of its divisors is an integer number (149058249840).

Almost surely, 2^{1131320046631} is an apocalyptic number.

1131320046631 is a deficient number, since it is larger than the sum of its proper divisors (61145952089).

1131320046631 is an equidigital number, since it uses as much as digits as its factorization.

1131320046631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80139605.

The product of its (nonzero) digits is 7776, while the sum is 31.

Adding to 1131320046631 its reverse (1366400231311), we get a palindrome (2497720277942).

The spelling of 1131320046631 in words is "one trillion, one hundred thirty-one billion, three hundred twenty million, forty-six thousand, six hundred thirty-one".