1101121029 has 24 divisors (see below), whose sum is σ = 1627367040. Its totient is φ = 717127488.

The previous prime is 1101121009. The next prime is 1101121033. The reversal of 1101121029 is 9201211011.

It is a happy number.

It is not a de Polignac number, because 1101121029 - 2⁵ = 1101120997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101121009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 258882 + ... + 263100.

It is an arithmetic number, because the mean of its divisors is an integer number (67806960).

Almost surely, 2^1101121029 is an apocalyptic number.

It is an amenable number.

1101121029 is a deficient number, since it is larger than the sum of its proper divisors (526246011).

1101121029 is a wasteful number, since it uses less digits than its factorization.

1101121029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4889 (or 4886 counting only the distinct ones).

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

The square root of 1101121029 is about 33183.1437479935. The cubic root of 1101121029 is about 1032.6306678973.

The spelling of 1101121029 in words is "one billion, one hundred one million, one hundred twenty-one thousand, twenty-nine".