123001052440 has 48 divisors (see below), whose sum is σ = 321936433200. Its totient is φ = 42171788736.

The previous prime is 123001052399. The next prime is 123001052483. The reversal of 123001052440 is 44250100321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31375860 + ... + 31379779.

It is an arithmetic number, because the mean of its divisors is an integer number (6707009025).

Almost surely, 2^123001052440 is an apocalyptic number.

123001052440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123001052440 is an abundant number, since it is smaller than the sum of its proper divisors (198935380760).

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

123001052440 is a wasteful number, since it uses less digits than its factorization.

123001052440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62755664 (or 62755653 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 123001052440 its reverse (44250100321), we get a palindrome (167251152761).

The spelling of 123001052440 in words is "one hundred twenty-three billion, one million, fifty-two thousand, four hundred forty".