1421131635441 has 48 divisors (see below), whose sum is σ = 2350079581824. Its totient is φ = 810662660352.

The previous prime is 1421131635433. The next prime is 1421131635449. The reversal of 1421131635441 is 1445361311241.

1421131635441 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 13 + 1 + 635 + 4 + 4 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1421131635433) and next prime (1421131635449).

It is not a de Polignac number, because 1421131635441 - 2³ = 1421131635433 is a prime.

It is a super-2 number, since 2×1421131635441² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1421131635396 and 1421131635405.

It is not an unprimeable number, because it can be changed into a prime (1421131635449) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 90320211 + ... + 90335943.

It is an arithmetic number, because the mean of its divisors is an integer number (48959991288).

Almost surely, 2^{1421131635441} is an apocalyptic number.

It is an amenable number.

1421131635441 is a deficient number, since it is larger than the sum of its proper divisors (928947946383).

1421131635441 is a wasteful number, since it uses less digits than its factorization.

1421131635441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18150 (or 18147 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

Adding to 1421131635441 its reverse (1445361311241), we get a palindrome (2866492946682).

The spelling of 1421131635441 in words is "one trillion, four hundred twenty-one billion, one hundred thirty-one million, six hundred thirty-five thousand, four hundred forty-one".