123227621171 has 4 divisors (see below), whose sum is σ = 123247506000. Its totient is φ = 123207736344.

The previous prime is 123227621147. The next prime is 123227621173. The reversal of 123227621171 is 171126722321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123227621171 - 2²² = 123223426867 is a prime.

It is a super-2 number, since 2×123227621171² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123227621173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9933116 + ... + 9945513.

It is an arithmetic number, because the mean of its divisors is an integer number (30811876500).

Almost surely, 2^123227621171 is an apocalyptic number.

123227621171 is a deficient number, since it is larger than the sum of its proper divisors (19884829).

123227621171 is an equidigital number, since it uses as much as digits as its factorization.

123227621171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19884828.

The product of its digits is 14112, while the sum is 35.

The spelling of 123227621171 in words is "one hundred twenty-three billion, two hundred twenty-seven million, six hundred twenty-one thousand, one hundred seventy-one".