1123211011099 has 6 divisors (see below), whose sum is σ = 1193168790644. Its totient is φ = 1057139774880.

The previous prime is 1123211011051. The next prime is 1123211011121. The reversal of 1123211011099 is 9901101123211.

It is not a de Polignac number, because 1123211011099 - 2⁹ = 1123211010587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1123211011099.

It is not an unprimeable number, because it can be changed into a prime (1123211051099) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1943271357 + ... + 1943271934.

Almost surely, 2^{1123211011099} is an apocalyptic number.

1123211011099 is a deficient number, since it is larger than the sum of its proper divisors (69957779545).

1123211011099 is an equidigital number, since it uses as much as digits as its factorization.

1123211011099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3886543325 (or 3886543308 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 31.

The spelling of 1123211011099 in words is "one trillion, one hundred twenty-three billion, two hundred eleven million, eleven thousand, ninety-nine".