123406465443 has 8 divisors (see below), whose sum is σ = 168368511168. Its totient is φ = 80357698344.

The previous prime is 123406465439. The next prime is 123406465453. The reversal of 123406465443 is 344564604321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123406465443 - 2² = 123406465439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123406465395 and 123406465404.

It is not an unprimeable number, because it can be changed into a prime (123406465423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478319505 + ... + 478319762.

It is an arithmetic number, because the mean of its divisors is an integer number (21046063896).

Almost surely, 2^123406465443 is an apocalyptic number.

123406465443 is a deficient number, since it is larger than the sum of its proper divisors (44962045725).

123406465443 is an equidigital number, since it uses as much as digits as its factorization.

123406465443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956639313.

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 123406465443 in words is "one hundred twenty-three billion, four hundred six million, four hundred sixty-five thousand, four hundred forty-three".