1423020031340 has 24 divisors (see below), whose sum is σ = 2988370258272. Its totient is φ = 569202642560.

The previous prime is 1423020031313. The next prime is 1423020031379. The reversal of 1423020031340 is 431300203241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2368880 + ... + 2908200.

It is an arithmetic number, because the mean of its divisors is an integer number (124515427428).

Almost surely, 2^{1423020031340} is an apocalyptic number.

1423020031340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423020031340 is an abundant number, since it is smaller than the sum of its proper divisors (1565350226932).

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

1423020031340 is a wasteful number, since it uses less digits than its factorization.

1423020031340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671257 (or 671255 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1423020031340 its reverse (431300203241), we get a palindrome (1854320234581).

The spelling of 1423020031340 in words is "one trillion, four hundred twenty-three billion, twenty million, thirty-one thousand, three hundred forty".