1211113344410 has 32 divisors (see below), whose sum is σ = 2239256524032. Its totient is φ = 471397276480.

The previous prime is 1211113344401. The next prime is 1211113344443. The reversal of 1211113344410 is 144433111121.

It is a self number, because there is not a number n which added to its sum of digits gives 1211113344410.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7366196 + ... + 7528815.

It is an arithmetic number, because the mean of its divisors is an integer number (69976766376).

Almost surely, 2^{1211113344410} is an apocalyptic number.

1211113344410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211113344410 is a deficient number, since it is larger than the sum of its proper divisors (1028143179622).

1211113344410 is a wasteful number, since it uses less digits than its factorization.

1211113344410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14895238.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 1211113344410 its reverse (144433111121), we get a palindrome (1355546455531).

The spelling of 1211113344410 in words is "one trillion, two hundred eleven billion, one hundred thirteen million, three hundred forty-four thousand, four hundred ten".