1423405023234 has 16 divisors (see below), whose sum is σ = 2854442249472. Its totient is φ = 473196307248.

The previous prime is 1423405023193. The next prime is 1423405023239. The reversal of 1423405023234 is 4323205043241.

It is a junction number, because it is equal to n+sod(n) for n = 1423405023195 and 1423405023204.

It is not an unprimeable number, because it can be changed into a prime (1423405023239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318006034 + ... + 318010509.

It is an arithmetic number, because the mean of its divisors is an integer number (178402640592).

Almost surely, 2^{1423405023234} is an apocalyptic number.

1423405023234 is an abundant number, since it is smaller than the sum of its proper divisors (1431037226238).

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

1423405023234 is a wasteful number, since it uses less digits than its factorization.

1423405023234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636016921.

The product of its (nonzero) digits is 69120, while the sum is 33.

The spelling of 1423405023234 in words is "one trillion, four hundred twenty-three billion, four hundred five million, twenty-three thousand, two hundred thirty-four".