123054311240 has 64 divisors (see below), whose sum is σ = 317260540800. Its totient is φ = 42078693888.

The previous prime is 123054311239. The next prime is 123054311269. The reversal of 123054311240 is 42113450321.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 473669 + ... + 685908.

It is an arithmetic number, because the mean of its divisors is an integer number (4957195950).

Almost surely, 2^123054311240 is an apocalyptic number.

123054311240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123054311240 is an abundant number, since it is smaller than the sum of its proper divisors (194206229560).

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

123054311240 is a wasteful number, since it uses less digits than its factorization.

123054311240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159974 (or 1159970 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 123054311240 its reverse (42113450321), we get a palindrome (165167761561).

The spelling of 123054311240 in words is "one hundred twenty-three billion, fifty-four million, three hundred eleven thousand, two hundred forty".