1011011000121 has 48 divisors (see below), whose sum is σ = 1549316740608. Its totient is φ = 634512076800.

The previous prime is 1011011000071. The next prime is 1011011000123. The reversal of 1011011000121 is 1210001101101.

It is not a de Polignac number, because 1011011000121 - 2⁶ = 1011011000057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1011011000123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 820825 + ... + 1641881.

It is an arithmetic number, because the mean of its divisors is an integer number (32277432096).

Almost surely, 2^{1011011000121} is an apocalyptic number.

It is an amenable number.

1011011000121 is a deficient number, since it is larger than the sum of its proper divisors (538305740487).

1011011000121 is a wasteful number, since it uses less digits than its factorization.

1011011000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821222 (or 821219 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1011011000121 its reverse (1210001101101), we get a palindrome (2221012101222).

The spelling of 1011011000121 in words is "one trillion, eleven billion, eleven million, one hundred twenty-one", and thus it is an aban number.