123212202231 has 16 divisors (see below), whose sum is σ = 175510448000. Its totient is φ = 76656764448.

The previous prime is 123212202227. The next prime is 123212202257. The reversal of 123212202231 is 132202212321.

It is not a de Polignac number, because 123212202231 - 2² = 123212202227 is a prime.

It is a super-2 number, since 2×123212202231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123212202198 and 123212202207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123212200231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16127656 + ... + 16135293.

It is an arithmetic number, because the mean of its divisors is an integer number (10969403000).

Almost surely, 2^123212202231 is an apocalyptic number.

123212202231 is a deficient number, since it is larger than the sum of its proper divisors (52298245769).

123212202231 is a wasteful number, since it uses less digits than its factorization.

123212202231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32263038.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 123212202231 its reverse (132202212321), we get a palindrome (255414414552).

The spelling of 123212202231 in words is "one hundred twenty-three billion, two hundred twelve million, two hundred two thousand, two hundred thirty-one".