23123121001011 has 12 divisors (see below), whose sum is σ = 33449399073792. Its totient is φ = 15392643813456.

The previous prime is 23123121000961. The next prime is 23123121001021. The reversal of 23123121001011 is 11010012132132.

23123121001011 is a `hidden beast` number, since 231 + 2 + 312 + 100 + 10 + 11 = 666.

It is not a de Polignac number, because 23123121001011 - 2¹⁰ = 23123120999987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23123121001021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1897509171 + ... + 1897521356.

It is an arithmetic number, because the mean of its divisors is an integer number (2787449922816).

Almost surely, 2^{23123121001011} is an apocalyptic number.

23123121001011 is a deficient number, since it is larger than the sum of its proper divisors (10326278072781).

23123121001011 is a wasteful number, since it uses less digits than its factorization.

23123121001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3795031210 (or 3795031207 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 23123121001011 its reverse (11010012132132), we get a palindrome (34133133133143).

The spelling of 23123121001011 in words is "twenty-three trillion, one hundred twenty-three billion, one hundred twenty-one million, one thousand, eleven".