1243113345301 has 16 divisors (see below), whose sum is σ = 1252183897008. Its totient is φ = 1234080460800.

The previous prime is 1243113345289. The next prime is 1243113345307. The reversal of 1243113345301 is 1035433113421.

It can be written as a sum of positive squares in 8 ways, for example, as 261171080401 + 981942264900 = 511049^2 + 990930^2 .

It is a cyclic number.

It is not a de Polignac number, because 1243113345301 - 2²³ = 1243104956693 is a prime.

It is a super-3 number, since 3×1243113345301³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243113345307) 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, 131388711 + ... + 131398171.

It is an arithmetic number, because the mean of its divisors is an integer number (78261493563).

Almost surely, 2^{1243113345301} is an apocalyptic number.

It is an amenable number.

1243113345301 is a deficient number, since it is larger than the sum of its proper divisors (9070551707).

1243113345301 is a wasteful number, since it uses less digits than its factorization.

1243113345301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11352.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 1243113345301 its reverse (1035433113421), we get a palindrome (2278546458722).

The spelling of 1243113345301 in words is "one trillion, two hundred forty-three billion, one hundred thirteen million, three hundred forty-five thousand, three hundred one".