1421235890105 has 8 divisors (see below), whose sum is σ = 1714053336000. Its totient is φ = 1131275200176.

The previous prime is 1421235890099. The next prime is 1421235890141. The reversal of 1421235890105 is 5010985321241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1421235890105 - 2⁸ = 1421235889849 is a prime.

It is a super-2 number, since 2×1421235890105² (a number of 25 digits) contains 22 as substring.

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, 714187895 + ... + 714189884.

It is an arithmetic number, because the mean of its divisors is an integer number (214256667000).

Almost surely, 2^{1421235890105} is an apocalyptic number.

It is an amenable number.

1421235890105 is a deficient number, since it is larger than the sum of its proper divisors (292817445895).

1421235890105 is a wasteful number, since it uses less digits than its factorization.

1421235890105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428377983.

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 1421235890105 in words is "one trillion, four hundred twenty-one billion, two hundred thirty-five million, eight hundred ninety thousand, one hundred five".