123110221330445 has 32 divisors (see below), whose sum is σ = 156772065945600. Its totient is φ = 92607091942464.

The previous prime is 123110221330427. The next prime is 123110221330507. The reversal of 123110221330445 is 544033122011321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 123110221330445 - 2¹² = 123110221326349 is a prime.

It is a super-2 number, since 2×123110221330445² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306881864 + ... + 307282766.

It is an arithmetic number, because the mean of its divisors is an integer number (4899127060800).

Almost surely, 2^{123110221330445} is an apocalyptic number.

It is an amenable number.

123110221330445 is a deficient number, since it is larger than the sum of its proper divisors (33661844615155).

123110221330445 is a wasteful number, since it uses less digits than its factorization.

123110221330445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446249.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 123110221330445 its reverse (544033122011321), we get a palindrome (667143343341766).

The spelling of 123110221330445 in words is "one hundred twenty-three trillion, one hundred ten billion, two hundred twenty-one million, three hundred thirty thousand, four hundred forty-five".