2111021001123 has 8 divisors (see below), whose sum is σ = 2822806181568. Its totient is φ = 1403291577384.

The previous prime is 2111021001083. The next prime is 2111021001137. The reversal of 2111021001123 is 3211001201112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2111021001123 - 2³³ = 2102431066531 is a prime.

It is a super-2 number, since 2×2111021001123² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2111021001143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1013937961 + ... + 1013940042.

It is an arithmetic number, because the mean of its divisors is an integer number (352850772696).

Almost surely, 2^{2111021001123} is an apocalyptic number.

2111021001123 is a deficient number, since it is larger than the sum of its proper divisors (711785180445).

2111021001123 is a wasteful number, since it uses less digits than its factorization.

2111021001123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027878353.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 2111021001123 its reverse (3211001201112), we get a palindrome (5322022202235).

The spelling of 2111021001123 in words is "two trillion, one hundred eleven billion, twenty-one million, one thousand, one hundred twenty-three".