123011460644 has 6 divisors (see below), whose sum is σ = 215270056134. Its totient is φ = 61505730320.

The previous prime is 123011460599. The next prime is 123011460667. The reversal of 123011460644 is 446064110321.

It can be written as a sum of positive squares in only one way, i.e., 62056788544 + 60954672100 = 249112^2 + 246890^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123011460644.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15376432577 + ... + 15376432584.

It is an arithmetic number, because the mean of its divisors is an integer number (35878342689).

Almost surely, 2^123011460644 is an apocalyptic number.

It is an amenable number.

123011460644 is a deficient number, since it is larger than the sum of its proper divisors (92258595490).

123011460644 is a wasteful number, since it uses less digits than its factorization.

123011460644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30752865165 (or 30752865163 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 123011460644 its reverse (446064110321), we get a palindrome (569075570965).

The spelling of 123011460644 in words is "one hundred twenty-three billion, eleven million, four hundred sixty thousand, six hundred forty-four".