1211104430 has 8 divisors (see below), whose sum is σ = 2179987992. Its totient is φ = 484441768.

The previous prime is 1211104379. The next prime is 1211104457. The reversal of 1211104430 is 344011121.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1211104399 and 1211104408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60555212 + ... + 60555231.

It is an arithmetic number, because the mean of its divisors is an integer number (272498499).

Almost surely, 2^1211104430 is an apocalyptic number.

1211104430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211104430 is a deficient number, since it is larger than the sum of its proper divisors (968883562).

1211104430 is a wasteful number, since it uses less digits than its factorization.

1211104430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121110450.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1211104430 is about 34800.9257060786. The cubic root of 1211104430 is about 1065.9263483898.

Adding to 1211104430 its reverse (344011121), we get a palindrome (1555115551).

The spelling of 1211104430 in words is "one billion, two hundred eleven million, one hundred four thousand, four hundred thirty".