123611622621 has 8 divisors (see below), whose sum is σ = 164823137184. Its totient is φ = 82403928240.

The previous prime is 123611622583. The next prime is 123611622637. The reversal of 123611622621 is 126226116321.

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

It is not a de Polignac number, because 123611622621 - 2⁹ = 123611622109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123611622661) 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, 878671 + ... + 1009596.

It is an arithmetic number, because the mean of its divisors is an integer number (20602892148).

Almost surely, 2^123611622621 is an apocalyptic number.

It is an amenable number.

123611622621 is a deficient number, since it is larger than the sum of its proper divisors (41211514563).

123611622621 is a wasteful number, since it uses less digits than its factorization.

123611622621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910091.

The product of its digits is 10368, while the sum is 33.

Adding to 123611622621 its reverse (126226116321), we get a palindrome (249837738942).

The spelling of 123611622621 in words is "one hundred twenty-three billion, six hundred eleven million, six hundred twenty-two thousand, six hundred twenty-one".