123461223647 has 16 divisors (see below), whose sum is σ = 130815165888. Its totient is φ = 116278272000.

The previous prime is 123461223619. The next prime is 123461223701. The reversal of 123461223647 is 746322164321.

It is a cyclic number.

It is not a de Polignac number, because 123461223647 - 2¹⁰ = 123461222623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123461273647) 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, 933647 + ... + 1057647.

It is an arithmetic number, because the mean of its divisors is an integer number (8175947868).

Almost surely, 2^123461223647 is an apocalyptic number.

123461223647 is a deficient number, since it is larger than the sum of its proper divisors (7353942241).

123461223647 is a wasteful number, since it uses less digits than its factorization.

123461223647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124690.

The product of its digits is 290304, while the sum is 41.

Adding to 123461223647 its reverse (746322164321), we get a palindrome (869783387968).

The spelling of 123461223647 in words is "one hundred twenty-three billion, four hundred sixty-one million, two hundred twenty-three thousand, six hundred forty-seven".