123220131110 has 16 divisors (see below), whose sum is σ = 224082796896. Its totient is φ = 48779927808.

The previous prime is 123220131079. The next prime is 123220131113. The reversal of 123220131110 is 11131022321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123220131113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63514562 + ... + 63516501.

It is an arithmetic number, because the mean of its divisors is an integer number (14005174806).

Almost surely, 2^123220131110 is an apocalyptic number.

123220131110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123220131110 is a deficient number, since it is larger than the sum of its proper divisors (100862665786).

123220131110 is a wasteful number, since it uses less digits than its factorization.

123220131110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127031167.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 123220131110 its reverse (11131022321), we get a palindrome (134351153431).

The spelling of 123220131110 in words is "one hundred twenty-three billion, two hundred twenty million, one hundred thirty-one thousand, one hundred ten".