1301433221 has 4 divisors (see below), whose sum is σ = 1419745344. Its totient is φ = 1183121100.

The previous prime is 1301433209. The next prime is 1301433223. The reversal of 1301433221 is 1223341031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1301433221 - 2⁶ = 1301433157 is a prime.

It is a super-3 number, since 3×1301433221³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301433193 and 1301433202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301433223) 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, 59156045 + ... + 59156066.

It is an arithmetic number, because the mean of its divisors is an integer number (354936336).

Almost surely, 2^1301433221 is an apocalyptic number.

1301433221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1301433221 is a deficient number, since it is larger than the sum of its proper divisors (118312123).

1301433221 is a wasteful number, since it uses less digits than its factorization.

1301433221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118312122.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1301433221 is about 36075.3824789149. The cubic root of 1301433221 is about 1091.7938145269.

Adding to 1301433221 its reverse (1223341031), we get a palindrome (2524774252).

The spelling of 1301433221 in words is "one billion, three hundred one million, four hundred thirty-three thousand, two hundred twenty-one".