1310220133 has 8 divisors (see below), whose sum is σ = 1328855000. Its totient is φ = 1291603968.

The previous prime is 1310220127. The next prime is 1310220137. The reversal of 1310220133 is 3310220131.

It can be written as a sum of positive squares in 4 ways, for example, as 1444804 + 1308775329 = 1202^2 + 36177^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1310220133 - 2¹³ = 1310211941 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 (1310220137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197413 + ... + 203941.

It is an arithmetic number, because the mean of its divisors is an integer number (166106875).

Almost surely, 2^1310220133 is an apocalyptic number.

It is an amenable number.

1310220133 is a deficient number, since it is larger than the sum of its proper divisors (18634867).

1310220133 is an equidigital number, since it uses as much as digits as its factorization.

1310220133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9351.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1310220133 is about 36196.9630355918. The cubic root of 1310220133 is about 1094.2454670012.

Adding to 1310220133 its reverse (3310220131), we get a palindrome (4620440264).

The spelling of 1310220133 in words is "one billion, three hundred ten million, two hundred twenty thousand, one hundred thirty-three".