1098134123 has 2 divisors, whose sum is σ = 1098134124. Its totient is φ = 1098134122.

The previous prime is 1098134099. The next prime is 1098134131. The reversal of 1098134123 is 3214318901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1098134123 - 2¹² = 1098130027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1098134123.

It is not a weakly prime, because it can be changed into another prime (1098134143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549067061 + 549067062.

It is an arithmetic number, because the mean of its divisors is an integer number (549067062).

Almost surely, 2^1098134123 is an apocalyptic number.

1098134123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1098134123 is an equidigital number, since it uses as much as digits as its factorization.

1098134123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1098134123 is about 33138.1068107398. The cubic root of 1098134123 is about 1031.6961161209.

The spelling of 1098134123 in words is "one billion, ninety-eight million, one hundred thirty-four thousand, one hundred twenty-three".