123237462643 has 2 divisors, whose sum is σ = 123237462644. Its totient is φ = 123237462642.

The previous prime is 123237462511. The next prime is 123237462679. The reversal of 123237462643 is 346264732321.

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-123237462643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123237462643.

It is not a weakly prime, because it can be changed into another prime (123237466643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61618731321 + 61618731322.

It is an arithmetic number, because the mean of its divisors is an integer number (61618731322).

Almost surely, 2^123237462643 is an apocalyptic number.

123237462643 is a deficient number, since it is larger than the sum of its proper divisors (1).

123237462643 is an equidigital number, since it uses as much as digits as its factorization.

123237462643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 43.

The spelling of 123237462643 in words is "one hundred twenty-three billion, two hundred thirty-seven million, four hundred sixty-two thousand, six hundred forty-three".