1301223311 has 4 divisors (see below), whose sum is σ = 1306668000. Its totient is φ = 1295778624.

The previous prime is 1301223293. The next prime is 1301223349. The reversal of 1301223311 is 1133221031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1301223311 - 2¹⁰ = 1301222287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1301223311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301223611) 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, 2721986 + ... + 2722463.

It is an arithmetic number, because the mean of its divisors is an integer number (326667000).

Almost surely, 2^1301223311 is an apocalyptic number.

1301223311 is a deficient number, since it is larger than the sum of its proper divisors (5444689).

1301223311 is an equidigital number, since it uses as much as digits as its factorization.

1301223311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5444688.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1301223311 is about 36072.4730369294. The cubic root of 1301223311 is about 1091.7351123826.

Adding to 1301223311 its reverse (1133221031), we get a palindrome (2434444342).

The spelling of 1301223311 in words is "one billion, three hundred one million, two hundred twenty-three thousand, three hundred eleven".