1313220250235 has 4 divisors (see below), whose sum is σ = 1575864300288. Its totient is φ = 1050576200184.

The previous prime is 1313220250231. The next prime is 1313220250249. The reversal of 1313220250235 is 5320520223131.

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 1313220250235 - 2² = 1313220250231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313220250198 and 1313220250207.

It is not an unprimeable number, because it can be changed into a prime (1313220250231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131322025019 + ... + 131322025028.

It is an arithmetic number, because the mean of its divisors is an integer number (393966075072).

Almost surely, 2^{1313220250235} is an apocalyptic number.

1313220250235 is a deficient number, since it is larger than the sum of its proper divisors (262644050053).

1313220250235 is an equidigital number, since it uses as much as digits as its factorization.

1313220250235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262644050052.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 1313220250235 its reverse (5320520223131), we get a palindrome (6633740473366).

The spelling of 1313220250235 in words is "one trillion, three hundred thirteen billion, two hundred twenty million, two hundred fifty thousand, two hundred thirty-five".