123212119951 has 2 divisors, whose sum is σ = 123212119952. Its totient is φ = 123212119950.

The previous prime is 123212119897. The next prime is 123212119963. The reversal of 123212119951 is 159911212321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123212119951 - 2⁹ = 123212119439 is a prime.

It is a super-3 number, since 3×123212119951³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 123212119951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123212119651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61606059975 + 61606059976.

It is an arithmetic number, because the mean of its divisors is an integer number (61606059976).

Almost surely, 2^123212119951 is an apocalyptic number.

123212119951 is a deficient number, since it is larger than the sum of its proper divisors (1).

123212119951 is an equidigital number, since it uses as much as digits as its factorization.

123212119951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 37.

The spelling of 123212119951 in words is "one hundred twenty-three billion, two hundred twelve million, one hundred nineteen thousand, nine hundred fifty-one".