123673683881 has 24 divisors (see below), whose sum is σ = 140800955400. Its totient is φ = 108418956800.

The previous prime is 123673683853. The next prime is 123673683899. The reversal of 123673683881 is 188386376321.

It can be written as a sum of positive squares in 4 ways, for example, as 1121178256 + 122552505625 = 33484^2 + 350075^2 .

It is not a de Polignac number, because 123673683881 - 2¹⁴ = 123673667497 is a prime.

It is a super-2 number, since 2×123673683881² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123673683811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2859425 + ... + 2902353.

It is an arithmetic number, because the mean of its divisors is an integer number (5866706475).

Almost surely, 2^123673683881 is an apocalyptic number.

123673683881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123673683881 is a deficient number, since it is larger than the sum of its proper divisors (17127271519).

123673683881 is a wasteful number, since it uses less digits than its factorization.

123673683881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43801 (or 43790 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 56.

The spelling of 123673683881 in words is "one hundred twenty-three billion, six hundred seventy-three million, six hundred eighty-three thousand, eight hundred eighty-one".