1029109121121 has 16 divisors (see below), whose sum is σ = 1377209755584. Its totient is φ = 683542931904.

The previous prime is 1029109121111. The next prime is 1029109121123. The reversal of 1029109121121 is 1211219019201.

It is a de Polignac number, because none of the positive numbers 2^k-1029109121121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1029109121123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1496766 + ... + 2073288.

It is an arithmetic number, because the mean of its divisors is an integer number (86075609724).

Almost surely, 2^{1029109121121} is an apocalyptic number.

It is an amenable number.

1029109121121 is a deficient number, since it is larger than the sum of its proper divisors (348100634463).

1029109121121 is a wasteful number, since it uses less digits than its factorization.

1029109121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578720.

The product of its (nonzero) digits is 648, while the sum is 30.

The spelling of 1029109121121 in words is "one trillion, twenty-nine billion, one hundred nine million, one hundred twenty-one thousand, one hundred twenty-one".