123422703540 has 24 divisors (see below), whose sum is σ = 345583570080. Its totient is φ = 32912720928.

The previous prime is 123422703517. The next prime is 123422703571. The reversal of 123422703540 is 45307224321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1028522470 + ... + 1028522589.

It is an arithmetic number, because the mean of its divisors is an integer number (14399315420).

Almost surely, 2^123422703540 is an apocalyptic number.

123422703540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123422703540 is an abundant number, since it is smaller than the sum of its proper divisors (222160866540).

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

123422703540 is a wasteful number, since it uses less digits than its factorization.

123422703540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057045071 (or 2057045069 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

Adding to 123422703540 its reverse (45307224321), we get a palindrome (168729927861).

The spelling of 123422703540 in words is "one hundred twenty-three billion, four hundred twenty-two million, seven hundred three thousand, five hundred forty".