123748604081 has 4 divisors (see below), whose sum is σ = 126381553152. Its totient is φ = 121115655012.

The previous prime is 123748604069. The next prime is 123748604087. The reversal of 123748604081 is 180406847321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123748604081 - 2¹⁰ = 123748603057 is a prime.

It is a super-2 number, since 2×123748604081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123748604087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1316474465 + ... + 1316474558.

It is an arithmetic number, because the mean of its divisors is an integer number (31595388288).

Almost surely, 2^123748604081 is an apocalyptic number.

It is an amenable number.

123748604081 is a deficient number, since it is larger than the sum of its proper divisors (2632949071).

123748604081 is an equidigital number, since it uses as much as digits as its factorization.

123748604081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632949070.

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 123748604081 in words is "one hundred twenty-three billion, seven hundred forty-eight million, six hundred four thousand, eighty-one".