123212013307 has 2 divisors, whose sum is σ = 123212013308. Its totient is φ = 123212013306.

The previous prime is 123212013269. The next prime is 123212013343. The reversal of 123212013307 is 703310212321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123212013307 is a prime.

It is not a weakly prime, because it can be changed into another prime (123212013607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61606006653 + 61606006654.

It is an arithmetic number, because the mean of its divisors is an integer number (61606006654).

Almost surely, 2^123212013307 is an apocalyptic number.

123212013307 is a deficient number, since it is larger than the sum of its proper divisors (1).

123212013307 is an equidigital number, since it uses as much as digits as its factorization.

123212013307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 123212013307 its reverse (703310212321), we get a palindrome (826522225628).

The spelling of 123212013307 in words is "one hundred twenty-three billion, two hundred twelve million, thirteen thousand, three hundred seven".