1121111052 has 24 divisors (see below), whose sum is σ = 2679730032. Its totient is φ = 364588800.

The previous prime is 1121111051. The next prime is 1121111071. The reversal of 1121111052 is 2501111211.

It is not an unprimeable number, because it can be changed into a prime (1121111051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1138849 + ... + 1139832.

It is an arithmetic number, because the mean of its divisors is an integer number (111655418).

Almost surely, 2^1121111052 is an apocalyptic number.

1121111052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121111052 is an abundant number, since it is smaller than the sum of its proper divisors (1558618980).

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

1121111052 is a wasteful number, since it uses less digits than its factorization.

1121111052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278729 (or 2278727 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 15.

The square root of 1121111052 is about 33482.9964608904. The cubic root of 1121111052 is about 1038.8421075326.

Adding to 1121111052 its reverse (2501111211), we get a palindrome (3622222263).

The spelling of 1121111052 in words is "one billion, one hundred twenty-one million, one hundred eleven thousand, fifty-two".