123365120460 has 48 divisors (see below), whose sum is σ = 346085423712. Its totient is φ = 32834214400.

The previous prime is 123365120449. The next prime is 123365120467. The reversal of 123365120460 is 64021563321.

It is a super-2 number, since 2×123365120460² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123365120467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1941951 + ... + 2004470.

It is an arithmetic number, because the mean of its divisors is an integer number (7210112994).

Almost surely, 2^123365120460 is an apocalyptic number.

123365120460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123365120460 is an abundant number, since it is smaller than the sum of its proper divisors (222720303252).

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

123365120460 is a wasteful number, since it uses less digits than its factorization.

123365120460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946954 (or 3946952 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 123365120460 its reverse (64021563321), we get a palindrome (187386683781).

The spelling of 123365120460 in words is "one hundred twenty-three billion, three hundred sixty-five million, one hundred twenty thousand, four hundred sixty".