123304310644 has 12 divisors (see below), whose sum is σ = 220800742624. Its totient is φ = 60218384184.

The previous prime is 123304310639. The next prime is 123304310671. The reversal of 123304310644 is 446013403321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358442592 + ... + 358442935.

Almost surely, 2^123304310644 is an apocalyptic number.

It is an amenable number.

123304310644 is a deficient number, since it is larger than the sum of its proper divisors (97496431980).

123304310644 is a wasteful number, since it uses less digits than its factorization.

123304310644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716885574 (or 716885572 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 123304310644 its reverse (446013403321), we get a palindrome (569317713965).

The spelling of 123304310644 in words is "one hundred twenty-three billion, three hundred four million, three hundred ten thousand, six hundred forty-four".