123522441440 has 24 divisors (see below), whose sum is σ = 291821768280. Its totient is φ = 49408976512.

The previous prime is 123522441391. The next prime is 123522441481. The reversal of 123522441440 is 44144225321.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 123522441397 and 123522441406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386007470 + ... + 386007789.

It is an arithmetic number, because the mean of its divisors is an integer number (12159240345).

Almost surely, 2^123522441440 is an apocalyptic number.

123522441440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123522441440 is an abundant number, since it is smaller than the sum of its proper divisors (168299326840).

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

123522441440 is an equidigital number, since it uses as much as digits as its factorization.

123522441440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772015274 (or 772015266 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 123522441440 its reverse (44144225321), we get a palindrome (167666666761).

The spelling of 123522441440 in words is "one hundred twenty-three billion, five hundred twenty-two million, four hundred forty-one thousand, four hundred forty".