123223011131 has 8 divisors (see below), whose sum is σ = 134428334400. Its totient is φ = 112018226440.

The previous prime is 123223011077. The next prime is 123223011139. The reversal of 123223011131 is 131110322321.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123223011131 is a prime.

It is a super-2 number, since 2×123223011131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123223011139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456680 + ... + 674538.

It is an arithmetic number, because the mean of its divisors is an integer number (16803541800).

Almost surely, 2^123223011131 is an apocalyptic number.

123223011131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123223011131 is a deficient number, since it is larger than the sum of its proper divisors (11205323269).

123223011131 is a wasteful number, since it uses less digits than its factorization.

123223011131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269289.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 123223011131 its reverse (131110322321), we get a palindrome (254333333452).

The spelling of 123223011131 in words is "one hundred twenty-three billion, two hundred twenty-three million, eleven thousand, one hundred thirty-one".