123233311131 has 16 divisors (see below), whose sum is σ = 193841645568. Its totient is φ = 68147452800.

The previous prime is 123233311129. The next prime is 123233311133. The reversal of 123233311131 is 131113332321.

It is an interprime number because it is at equal distance from previous prime (123233311129) and next prime (123233311133).

It is not a de Polignac number, because 123233311131 - 2¹ = 123233311129 is a prime.

It is a super-2 number, since 2×123233311131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123233311133) 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 15 ways as a sum of consecutive naturals, for example, 94648590 + ... + 94649891.

It is an arithmetic number, because the mean of its divisors is an integer number (12115102848).

Almost surely, 2^123233311131 is an apocalyptic number.

123233311131 is a deficient number, since it is larger than the sum of its proper divisors (70608334437).

123233311131 is a wasteful number, since it uses less digits than its factorization.

123233311131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189298522.

The product of its digits is 972, while the sum is 24.

Adding to 123233311131 its reverse (131113332321), we get a palindrome (254346643452).

The spelling of 123233311131 in words is "one hundred twenty-three billion, two hundred thirty-three million, three hundred eleven thousand, one hundred thirty-one".