123507461340 has 48 divisors (see below), whose sum is σ = 384245436960. Its totient is φ = 32935322880.

The previous prime is 123507461323. The next prime is 123507461347. The reversal of 123507461340 is 43164705321.

123507461340 is a `hidden beast` number, since 1 + 2 + 35 + 0 + 7 + 4 + 613 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 123507461295 and 123507461304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123507461347) by changing a digit.

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, 114358221 + ... + 114359300.

It is an arithmetic number, because the mean of its divisors is an integer number (8005113270).

Almost surely, 2^123507461340 is an apocalyptic number.

123507461340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123507461340 is an abundant number, since it is smaller than the sum of its proper divisors (260737975620).

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

123507461340 is a wasteful number, since it uses less digits than its factorization.

123507461340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228717539 (or 228717531 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 123507461340 in words is "one hundred twenty-three billion, five hundred seven million, four hundred sixty-one thousand, three hundred forty".