123218761011 has 8 divisors (see below), whose sum is σ = 164665923840. Its totient is φ = 81958719432.

The previous prime is 123218761007. The next prime is 123218761013. The reversal of 123218761011 is 110167812321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123218761011 - 2² = 123218761007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123218761013) 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 7 ways as a sum of consecutive naturals, for example, 46778775 + ... + 46781408.

It is an arithmetic number, because the mean of its divisors is an integer number (20583240480).

Almost surely, 2^123218761011 is an apocalyptic number.

123218761011 is a deficient number, since it is larger than the sum of its proper divisors (41447162829).

123218761011 is an equidigital number, since it uses as much as digits as its factorization.

123218761011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93560625.

The product of its (nonzero) digits is 4032, while the sum is 33.

The spelling of 123218761011 in words is "one hundred twenty-three billion, two hundred eighteen million, seven hundred sixty-one thousand, eleven".