123401123140 has 48 divisors (see below), whose sum is σ = 263588592960. Its totient is φ = 48513891200.

The previous prime is 123401123137. The next prime is 123401123159. The reversal of 123401123140 is 41321104321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8870190 + ... + 8884090.

It is an arithmetic number, because the mean of its divisors is an integer number (5491429020).

Almost surely, 2^123401123140 is an apocalyptic number.

123401123140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123401123140 is an abundant number, since it is smaller than the sum of its proper divisors (140187469820).

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

123401123140 is a wasteful number, since it uses less digits than its factorization.

123401123140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21492 (or 21490 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 123401123140 its reverse (41321104321), we get a palindrome (164722227461).

The spelling of 123401123140 in words is "one hundred twenty-three billion, four hundred one million, one hundred twenty-three thousand, one hundred forty".