123466421040 has 80 divisors (see below), whose sum is σ = 382895442528. Its totient is φ = 32911515648.

The previous prime is 123466421021. The next prime is 123466421069. The reversal of 123466421040 is 40124664321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 123466420992 and 123466421010.

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, 523122 + ... + 721518.

Almost surely, 2^123466421040 is an apocalyptic number.

123466421040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123466421040 is an abundant number, since it is smaller than the sum of its proper divisors (259429021488).

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

123466421040 is a wasteful number, since it uses less digits than its factorization.

123466421040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201006 (or 201000 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 123466421040 in words is "one hundred twenty-three billion, four hundred sixty-six million, four hundred twenty-one thousand, forty".