123454001144 has 32 divisors (see below), whose sum is σ = 235196887680. Its totient is φ = 60736916064.

The previous prime is 123454001137. The next prime is 123454001161. The reversal of 123454001144 is 441100454321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345599 + ... + 605265.

It is an arithmetic number, because the mean of its divisors is an integer number (7349902740).

Almost surely, 2^123454001144 is an apocalyptic number.

It is an amenable number.

123454001144 is a deficient number, since it is larger than the sum of its proper divisors (111742886536).

123454001144 is a wasteful number, since it uses less digits than its factorization.

123454001144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260627 (or 260623 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 123454001144 its reverse (441100454321), we get a palindrome (564554455465).

The spelling of 123454001144 in words is "one hundred twenty-three billion, four hundred fifty-four million, one thousand, one hundred forty-four".