1123211111000 has 64 divisors (see below), whose sum is σ = 2867251664160. Its totient is φ = 408440400000.

The previous prime is 1123211110981. The next prime is 1123211111051. The reversal of 1123211111000 is 1111123211.

It is a congruent number.

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, 51044051 + ... + 51066050.

Almost surely, 2^{1123211111000} is an apocalyptic number.

1123211111000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123211111000 is an abundant number, since it is smaller than the sum of its proper divisors (1744040553160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123211111000 is a wasteful number, since it uses less digits than its factorization.

1123211111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102110133 (or 102110119 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1123211111000 its reverse (1111123211), we get a palindrome (1124322234211).

The spelling of 1123211111000 in words is "one trillion, one hundred twenty-three billion, two hundred eleven million, one hundred eleven thousand".