1121011011138 has 16 divisors (see below), whose sum is σ = 2261862926496. Its totient is φ = 370363519680.

The previous prime is 1121011011137. The next prime is 1121011011157. The reversal of 1121011011138 is 8311101101211.

It is not an unprimeable number, because it can be changed into a prime (1121011011137) 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, 826703608 + ... + 826704963.

It is an arithmetic number, because the mean of its divisors is an integer number (141366432906).

Almost surely, 2^{1121011011138} is an apocalyptic number.

1121011011138 is an abundant number, since it is smaller than the sum of its proper divisors (1140851915358).

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

1121011011138 is a wasteful number, since it uses less digits than its factorization.

1121011011138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653408689.

The product of its (nonzero) digits is 48, while the sum is 21.

Adding to 1121011011138 its reverse (8311101101211), we get a palindrome (9432112112349).

The spelling of 1121011011138 in words is "one trillion, one hundred twenty-one billion, eleven million, eleven thousand, one hundred thirty-eight".