1101111123123 has 40 divisors (see below), whose sum is σ = 1796493504960. Its totient is φ = 666562731120.

The previous prime is 1101111123121. The next prime is 1101111123149. The reversal of 1101111123123 is 3213211111011.

It is not a de Polignac number, because 1101111123123 - 2¹ = 1101111123121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101111123096 and 1101111123105.

It is not an unprimeable number, because it can be changed into a prime (1101111123121) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 46036 + ... + 1484702.

It is an arithmetic number, because the mean of its divisors is an integer number (44912337624).

Almost surely, 2^{1101111123123} is an apocalyptic number.

1101111123123 is a deficient number, since it is larger than the sum of its proper divisors (695382381837).

1101111123123 is a wasteful number, since it uses less digits than its factorization.

1101111123123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439549 (or 1439540 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 1101111123123 its reverse (3213211111011), we get a palindrome (4314322234134).

The spelling of 1101111123123 in words is "one trillion, one hundred one billion, one hundred eleven million, one hundred twenty-three thousand, one hundred twenty-three".