123300001881 has 81 divisors (see below), whose sum is σ = 216875228661. Its totient is φ = 67301088624.

The previous prime is 123300001861. The next prime is 123300001883. The reversal of 123300001881 is 188100003321.

The square root of 123300001881 is 351141.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 123300001881 - 2²³ = 123291613273 is a prime.

It is a super-2 number, since 2×123300001881² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123300001883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 169600740 + ... + 169601466.

Almost surely, 2^123300001881 is an apocalyptic number.

123300001881 is the 351141-st square number.

123300001881 is the 175571-st centered octagonal number.

It is an amenable number.

123300001881 is a deficient number, since it is larger than the sum of its proper divisors (93575226780).

123300001881 is an frugal number, since it uses more digits than its factorization.

123300001881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 123300001881 in words is "one hundred twenty-three billion, three hundred million, one thousand, eight hundred eighty-one".