123011331232 has 12 divisors (see below), whose sum is σ = 242178558426. Its totient is φ = 61505665600.

The previous prime is 123011331199. The next prime is 123011331263. The reversal of 123011331232 is 232133110321.

It can be written as a sum of positive squares in only one way, i.e., 75363426576 + 47647904656 = 274524^2 + 218284^2 .

It is a super-2 number, since 2×123011331232² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1922052019 + ... + 1922052082.

Almost surely, 2^123011331232 is an apocalyptic number.

It is an amenable number.

123011331232 is a deficient number, since it is larger than the sum of its proper divisors (119167227194).

123011331232 is an equidigital number, since it uses as much as digits as its factorization.

123011331232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3844104111 (or 3844104103 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123011331232 its reverse (232133110321), we get a palindrome (355144441553).

The spelling of 123011331232 in words is "one hundred twenty-three billion, eleven million, three hundred thirty-one thousand, two hundred thirty-two".