1313222043 has 16 divisors (see below), whose sum is σ = 2030969600. Its totient is φ = 739211616.

The previous prime is 1313222023. The next prime is 1313222047. The reversal of 1313222043 is 3402223131.

It is not a de Polignac number, because 1313222043 - 2⁶ = 1313221979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313222047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465268 + ... + 468081.

It is an arithmetic number, because the mean of its divisors is an integer number (126935600).

Almost surely, 2^1313222043 is an apocalyptic number.

1313222043 is a deficient number, since it is larger than the sum of its proper divisors (717747557).

1313222043 is an equidigital number, since it uses as much as digits as its factorization.

1313222043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933426.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1313222043 is about 36238.4056354581. The cubic root of 1313222043 is about 1095.0805228414.

Adding to 1313222043 its reverse (3402223131), we get a palindrome (4715445174).

The spelling of 1313222043 in words is "one billion, three hundred thirteen million, two hundred twenty-two thousand, forty-three".