1098129811 has 8 divisors (see below), whose sum is σ = 1105776144. Its totient is φ = 1090504800.

The previous prime is 1098129803. The next prime is 1098129821. The reversal of 1098129811 is 1189218901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1098129811 - 2³ = 1098129803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1098129821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105961 + ... + 115861.

It is an arithmetic number, because the mean of its divisors is an integer number (138222018).

Almost surely, 2^1098129811 is an apocalyptic number.

1098129811 is a deficient number, since it is larger than the sum of its proper divisors (7646333).

1098129811 is an equidigital number, since it uses as much as digits as its factorization.

1098129811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10661.

The product of its (nonzero) digits is 10368, while the sum is 40.

The square root of 1098129811 is about 33138.0417496267. The cubic root of 1098129811 is about 1031.6947657456.

The spelling of 1098129811 in words is "one billion, ninety-eight million, one hundred twenty-nine thousand, eight hundred eleven".