1421143411 has 8 divisors (see below), whose sum is σ = 1438981040. Its totient is φ = 1403371008.

The previous prime is 1421143393. The next prime is 1421143429. The reversal of 1421143411 is 1143411241.

It is an interprime number because it is at equal distance from previous prime (1421143393) and next prime (1421143429).

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 1421143411 - 2⁵ = 1421143379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421143211) 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, 28300 + ... + 60358.

It is an arithmetic number, because the mean of its divisors is an integer number (179872630).

Almost surely, 2^1421143411 is an apocalyptic number.

1421143411 is a deficient number, since it is larger than the sum of its proper divisors (17837629).

1421143411 is an equidigital number, since it uses as much as digits as its factorization.

1421143411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32613.

The product of its digits is 384, while the sum is 22.

The square root of 1421143411 is about 37698.0557986748. The cubic root of 1421143411 is about 1124.2924699479.

Adding to 1421143411 its reverse (1143411241), we get a palindrome (2564554652).

The spelling of 1421143411 in words is "one billion, four hundred twenty-one million, one hundred forty-three thousand, four hundred eleven".