1131331037 has 2 divisors, whose sum is σ = 1131331038. Its totient is φ = 1131331036.

The previous prime is 1131331021. The next prime is 1131331039. The reversal of 1131331037 is 7301331311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 980065636 + 151265401 = 31306^2 + 12299^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131331037 - 2⁴ = 1131331021 is a prime.

Together with 1131331039, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131331039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565665518 + 565665519.

It is an arithmetic number, because the mean of its divisors is an integer number (565665519).

Almost surely, 2^1131331037 is an apocalyptic number.

It is an amenable number.

1131331037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131331037 is an equidigital number, since it uses as much as digits as its factorization.

1131331037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 23.

The square root of 1131331037 is about 33635.2647826652. The cubic root of 1131331037 is about 1041.9892391097.

Adding to 1131331037 its reverse (7301331311), we get a palindrome (8432662348).

The spelling of 1131331037 in words is "one billion, one hundred thirty-one million, three hundred thirty-one thousand, thirty-seven".