124405255412 has 6 divisors (see below), whose sum is σ = 217709196978. Its totient is φ = 62202627704.

The previous prime is 124405255391. The next prime is 124405255453. The reversal of 124405255412 is 214552504421.

It can be written as a sum of positive squares in only one way, i.e., 89074790116 + 35330465296 = 298454^2 + 187964^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15550656923 + ... + 15550656930.

It is an arithmetic number, because the mean of its divisors is an integer number (36284866163).

Almost surely, 2^124405255412 is an apocalyptic number.

It is an amenable number.

124405255412 is a deficient number, since it is larger than the sum of its proper divisors (93303941566).

124405255412 is a wasteful number, since it uses less digits than its factorization.

124405255412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31101313857 (or 31101313855 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 124405255412 its reverse (214552504421), we get a palindrome (338957759833).

The spelling of 124405255412 in words is "one hundred twenty-four billion, four hundred five million, two hundred fifty-five thousand, four hundred twelve".