123533131011 has 8 divisors (see below), whose sum is σ = 165169647360. Its totient is φ = 82126017672.

The previous prime is 123533130997. The next prime is 123533131063. The reversal of 123533131011 is 110131335321.

It is a happy number.

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

It is not a de Polignac number, because 123533131011 - 2¹³ = 123533122819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123533132011) 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, 57349495 + ... + 57351648.

It is an arithmetic number, because the mean of its divisors is an integer number (20646205920).

Almost surely, 2^123533131011 is an apocalyptic number.

123533131011 is a deficient number, since it is larger than the sum of its proper divisors (41636516349).

123533131011 is a wasteful number, since it uses less digits than its factorization.

123533131011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114701505.

The product of its (nonzero) digits is 810, while the sum is 24.

Adding to 123533131011 its reverse (110131335321), we get a palindrome (233664466332).

The spelling of 123533131011 in words is "one hundred twenty-three billion, five hundred thirty-three million, one hundred thirty-one thousand, eleven".