1137043231 has 2 divisors, whose sum is σ = 1137043232. Its totient is φ = 1137043230.

The previous prime is 1137043211. The next prime is 1137043241. The reversal of 1137043231 is 1323407311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1137043231 - 2⁵ = 1137043199 is a prime.

It is a super-2 number, since 2×1137043231² = 2585734618325838722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1137043196 and 1137043205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1137043211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568521615 + 568521616.

It is an arithmetic number, because the mean of its divisors is an integer number (568521616).

Almost surely, 2^1137043231 is an apocalyptic number.

1137043231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1137043231 is an equidigital number, since it uses as much as digits as its factorization.

1137043231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 1137043231 is about 33720.0716339690. The cubic root of 1137043231 is about 1043.7399955248.

The spelling of 1137043231 in words is "one billion, one hundred thirty-seven million, forty-three thousand, two hundred thirty-one".