1131454031 has 2 divisors, whose sum is σ = 1131454032. Its totient is φ = 1131454030.

The previous prime is 1131454007. The next prime is 1131454067. The reversal of 1131454031 is 1304541311.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131454031 is a prime.

It is a super-2 number, since 2×1131454031² = 2560376448532297922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1131453988 and 1131454006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131454001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565727015 + 565727016.

It is an arithmetic number, because the mean of its divisors is an integer number (565727016).

Almost surely, 2^1131454031 is an apocalyptic number.

1131454031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131454031 is an equidigital number, since it uses as much as digits as its factorization.

1131454031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1131454031 is about 33637.0930818940. The cubic root of 1131454031 is about 1042.0269981081.

Adding to 1131454031 its reverse (1304541311), we get a palindrome (2435995342).

The spelling of 1131454031 in words is "one billion, one hundred thirty-one million, four hundred fifty-four thousand, thirty-one".