123605271077 has 16 divisors (see below), whose sum is σ = 131335987200. Its totient is φ = 115999899120.

The previous prime is 123605271007. The next prime is 123605271089. The reversal of 123605271077 is 770172506321.

It is a cyclic number.

It is not a de Polignac number, because 123605271077 - 2³² = 119310303781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123605271007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1551302 + ... + 1629032.

It is an arithmetic number, because the mean of its divisors is an integer number (8208499200).

Almost surely, 2^123605271077 is an apocalyptic number.

It is an amenable number.

123605271077 is a deficient number, since it is larger than the sum of its proper divisors (7730716123).

123605271077 is a wasteful number, since it uses less digits than its factorization.

123605271077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78536.

The product of its (nonzero) digits is 123480, while the sum is 41.

Adding to 123605271077 its reverse (770172506321), we get a palindrome (893777777398).

The spelling of 123605271077 in words is "one hundred twenty-three billion, six hundred five million, two hundred seventy-one thousand, seventy-seven".