123000211331 has 16 divisors (see below), whose sum is σ = 127175989248. Its totient is φ = 118890422400.

The previous prime is 123000211319. The next prime is 123000211337. The reversal of 123000211331 is 133112000321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123000211331 is a prime.

It is a super-2 number, since 2×123000211331² (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 (123000211337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21534566 + ... + 21540276.

It is an arithmetic number, because the mean of its divisors is an integer number (7948499328).

Almost surely, 2^123000211331 is an apocalyptic number.

123000211331 is a deficient number, since it is larger than the sum of its proper divisors (4175777917).

123000211331 is an equidigital number, since it uses as much as digits as its factorization.

123000211331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11362.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 123000211331 its reverse (133112000321), we get a palindrome (256112211652).

The spelling of 123000211331 in words is "one hundred twenty-three billion, two hundred eleven thousand, three hundred thirty-one".