1238118043 has 2 divisors, whose sum is σ = 1238118044. Its totient is φ = 1238118042.

The previous prime is 1238118019. The next prime is 1238118053. The reversal of 1238118043 is 3408118321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1238118043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1238117996 and 1238118014.

It is not a weakly prime, because it can be changed into another prime (1238118053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619059021 + 619059022.

It is an arithmetic number, because the mean of its divisors is an integer number (619059022).

Almost surely, 2^1238118043 is an apocalyptic number.

1238118043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238118043 is an equidigital number, since it uses as much as digits as its factorization.

1238118043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 1238118043 is about 35186.9015828333. The cubic root of 1238118043 is about 1073.7932860706.

The spelling of 1238118043 in words is "one billion, two hundred thirty-eight million, one hundred eighteen thousand, forty-three".