1481421311 has 4 divisors (see below), whose sum is σ = 1482283824. Its totient is φ = 1480558800.

The previous prime is 1481421301. The next prime is 1481421323. The reversal of 1481421311 is 1131241841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1131241841 = 20011 ⋅56531.

It is a cyclic number.

It is not a de Polignac number, because 1481421311 - 2¹⁰ = 1481420287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481421301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428675 + ... + 432116.

It is an arithmetic number, because the mean of its divisors is an integer number (370570956).

Almost surely, 2^1481421311 is an apocalyptic number.

1481421311 is a deficient number, since it is larger than the sum of its proper divisors (862513).

1481421311 is an equidigital number, since it uses as much as digits as its factorization.

1481421311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862512.

The product of its digits is 768, while the sum is 26.

The square root of 1481421311 is about 38489.2363005555. The cubic root of 1481421311 is about 1139.9685307308.

The spelling of 1481421311 in words is "one billion, four hundred eighty-one million, four hundred twenty-one thousand, three hundred eleven".