123006251601 has 12 divisors (see below), whose sum is σ = 180327573712. Its totient is φ = 80780224536.

The previous prime is 123006251593. The next prime is 123006251611. The reversal of 123006251601 is 106152600321.

123006251601 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 0 + 6 + 2 + 51 + 601 = 666.

It is not a de Polignac number, because 123006251601 - 2³ = 123006251593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123006251611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101994631 + ... + 101995836.

Almost surely, 2^123006251601 is an apocalyptic number.

It is an amenable number.

123006251601 is a deficient number, since it is larger than the sum of its proper divisors (57321322111).

123006251601 is a wasteful number, since it uses less digits than its factorization.

123006251601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203990540 (or 203990537 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 123006251601 its reverse (106152600321), we get a palindrome (229158851922).

The spelling of 123006251601 in words is "one hundred twenty-three billion, six million, two hundred fifty-one thousand, six hundred one".