123622163251 has 4 divisors (see below), whose sum is σ = 123886879272. Its totient is φ = 123357447232.

The previous prime is 123622163221. The next prime is 123622163261. The reversal of 123622163251 is 152361226321.

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 123622163251 - 2⁵ = 123622163219 is a prime.

It is a super-4 number, since 4×123622163251⁴ (a number of 45 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123622163221) 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 3 ways as a sum of consecutive naturals, for example, 132357310 + ... + 132358243.

It is an arithmetic number, because the mean of its divisors is an integer number (30971719818).

Almost surely, 2^123622163251 is an apocalyptic number.

123622163251 is a deficient number, since it is larger than the sum of its proper divisors (264716021).

123622163251 is an equidigital number, since it uses as much as digits as its factorization.

123622163251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264716020.

The product of its digits is 25920, while the sum is 34.

Adding to 123622163251 its reverse (152361226321), we get a palindrome (275983389572).

The spelling of 123622163251 in words is "one hundred twenty-three billion, six hundred twenty-two million, one hundred sixty-three thousand, two hundred fifty-one".