1102431211555 has 16 divisors (see below), whose sum is σ = 1396052405280. Its totient is φ = 833422182912.

The previous prime is 1102431211507. The next prime is 1102431211571. The reversal of 1102431211555 is 5551121342011.

It is a cyclic number.

It is not a de Polignac number, because 1102431211555 - 2³³ = 1093841276963 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14577574 + ... + 14653003.

It is an arithmetic number, because the mean of its divisors is an integer number (87253275330).

Almost surely, 2^{1102431211555} is an apocalyptic number.

1102431211555 is a deficient number, since it is larger than the sum of its proper divisors (293621193725).

1102431211555 is a wasteful number, since it uses less digits than its factorization.

1102431211555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29230998.

The product of its (nonzero) digits is 6000, while the sum is 31.

Adding to 1102431211555 its reverse (5551121342011), we get a palindrome (6653552553566).

The spelling of 1102431211555 in words is "one trillion, one hundred two billion, four hundred thirty-one million, two hundred eleven thousand, five hundred fifty-five".