1021404214243 has 8 divisors (see below), whose sum is σ = 1167894435680. Its totient is φ = 875057826240.

The previous prime is 1021404214123. The next prime is 1021404214277. The reversal of 1021404214243 is 3424124041201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021404214243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021404244243) 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, 35943138 + ... + 35971543.

It is an arithmetic number, because the mean of its divisors is an integer number (145986804460).

Almost surely, 2^{1021404214243} is an apocalyptic number.

1021404214243 is a deficient number, since it is larger than the sum of its proper divisors (146490221437).

1021404214243 is an equidigital number, since it uses as much as digits as its factorization.

1021404214243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71916717.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1021404214243 its reverse (3424124041201), we get a palindrome (4445528255444).

The spelling of 1021404214243 in words is "one trillion, twenty-one billion, four hundred four million, two hundred fourteen thousand, two hundred forty-three".