123212131011232 has 12 divisors (see below), whose sum is σ = 242573882928426. Its totient is φ = 61606065505600.

The previous prime is 123212131011227. The next prime is 123212131011239. The reversal of 123212131011232 is 232110131212321.

It can be written as a sum of positive squares in only one way, i.e., 86127977226256 + 37084153784976 = 9280516^2 + 6089676^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123212131011197 and 123212131011206.

It is not an unprimeable number, because it can be changed into a prime (123212131011239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1925189547019 + ... + 1925189547082.

Almost surely, 2^{123212131011232} is an apocalyptic number.

It is an amenable number.

123212131011232 is a deficient number, since it is larger than the sum of its proper divisors (119361751917194).

123212131011232 is an equidigital number, since it uses as much as digits as its factorization.

123212131011232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3850379094111 (or 3850379094103 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 123212131011232 its reverse (232110131212321), we get a palindrome (355322262223553).

The spelling of 123212131011232 in words is "one hundred twenty-three trillion, two hundred twelve billion, one hundred thirty-one million, eleven thousand, two hundred thirty-two".