123155226061 has 8 divisors (see below), whose sum is σ = 140922815040. Its totient is φ = 105431133408.

The previous prime is 123155226059. The next prime is 123155226097. The reversal of 123155226061 is 160622551321.

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

It is a cyclic number.

It is not a de Polignac number, because 123155226061 - 2¹ = 123155226059 is a prime.

It is a super-2 number, since 2×123155226061² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123155226461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10868011 + ... + 10879336.

It is an arithmetic number, because the mean of its divisors is an integer number (17615351880).

Almost surely, 2^123155226061 is an apocalyptic number.

It is an amenable number.

123155226061 is a deficient number, since it is larger than the sum of its proper divisors (17767588979).

123155226061 is an equidigital number, since it uses as much as digits as its factorization.

123155226061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21748163.

The product of its (nonzero) digits is 21600, while the sum is 34.

Adding to 123155226061 its reverse (160622551321), we get a palindrome (283777777382).

The spelling of 123155226061 in words is "one hundred twenty-three billion, one hundred fifty-five million, two hundred twenty-six thousand, sixty-one".