123611622620 has 48 divisors (see below), whose sum is σ = 260475360768. Its totient is φ = 49275105600.

The previous prime is 123611622583. The next prime is 123611622637. The reversal of 123611622620 is 26226116321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16811945 + ... + 16819295.

It is an arithmetic number, because the mean of its divisors is an integer number (5426570016).

Almost surely, 2^123611622620 is an apocalyptic number.

123611622620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123611622620 is an abundant number, since it is smaller than the sum of its proper divisors (136863738148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123611622620 is a wasteful number, since it uses less digits than its factorization.

123611622620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10130 (or 10128 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 123611622620 its reverse (26226116321), we get a palindrome (149837738941).

The spelling of 123611622620 in words is "one hundred twenty-three billion, six hundred eleven million, six hundred twenty-two thousand, six hundred twenty".