2111504504404 has 12 divisors (see below), whose sum is σ = 3696862019284. Its totient is φ = 1055258213184.

The previous prime is 2111504504371. The next prime is 2111504504407. The reversal of 2111504504404 is 4044054051112.

It can be written as a sum of positive squares in 2 ways, for example, as 121424371600 + 1990080132804 = 348460^2 + 1410702^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111504504407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123500139 + ... + 123517234.

Almost surely, 2^{2111504504404} is an apocalyptic number.

It is an amenable number.

2111504504404 is a deficient number, since it is larger than the sum of its proper divisors (1585357514880).

2111504504404 is a wasteful number, since it uses less digits than its factorization.

2111504504404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247019514 (or 247019512 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 2111504504404 its reverse (4044054051112), we get a palindrome (6155558555516).

The spelling of 2111504504404 in words is "two trillion, one hundred eleven billion, five hundred four million, five hundred four thousand, four hundred four".