2011302121123 has 16 divisors (see below), whose sum is σ = 2051236902400. Its totient is φ = 1971738422784.

The previous prime is 2011302121091. The next prime is 2011302121133. The reversal of 2011302121123 is 3211212031102.

It is a cyclic number.

It is not a de Polignac number, because 2011302121123 - 2⁵ = 2011302121091 is a prime.

It is a super-2 number, since 2×2011302121123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2011302121123.

It is not an unprimeable number, because it can be changed into a prime (2011302121133) 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, 7848190 + ... + 8100412.

It is an arithmetic number, because the mean of its divisors is an integer number (128202306400).

Almost surely, 2^{2011302121123} is an apocalyptic number.

2011302121123 is a deficient number, since it is larger than the sum of its proper divisors (39934781277).

2011302121123 is a wasteful number, since it uses less digits than its factorization.

2011302121123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252958.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2011302121123 its reverse (3211212031102), we get a palindrome (5222514152225).

The spelling of 2011302121123 in words is "two trillion, eleven billion, three hundred two million, one hundred twenty-one thousand, one hundred twenty-three".