1211104398 has 16 divisors (see below), whose sum is σ = 2768238720. Its totient is φ = 346029816.

The previous prime is 1211104379. The next prime is 1211104457. The reversal of 1211104398 is 8934011121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14417868 + ... + 14417951.

It is an arithmetic number, because the mean of its divisors is an integer number (173014920).

Almost surely, 2^1211104398 is an apocalyptic number.

1211104398 is an abundant number, since it is smaller than the sum of its proper divisors (1557134322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211104398 is a wasteful number, since it uses less digits than its factorization.

1211104398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28835831.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1211104398 is about 34800.9252463207. The cubic root of 1211104398 is about 1065.9263390018.

The spelling of 1211104398 in words is "one billion, two hundred eleven million, one hundred four thousand, three hundred ninety-eight".