21423413290142 has 16 divisors (see below), whose sum is σ = 32505403200480. Its totient is φ = 10588347145728.

The previous prime is 21423413290049. The next prime is 21423413290151. The reversal of 21423413290142 is 24109231432412.

It is a junction number, because it is equal to n+sod(n) for n = 21423413290096 and 21423413290105.

It is a congruent number.

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, 16434323 + ... + 17689934.

It is an arithmetic number, because the mean of its divisors is an integer number (2031587700030).

Almost surely, 2^{21423413290142} is an apocalyptic number.

21423413290142 is a deficient number, since it is larger than the sum of its proper divisors (11081989910338).

21423413290142 is a wasteful number, since it uses less digits than its factorization.

21423413290142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34127875.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 21423413290142 in words is "twenty-one trillion, four hundred twenty-three billion, four hundred thirteen million, two hundred ninety thousand, one hundred forty-two".