1243302513401 has 8 divisors (see below), whose sum is σ = 1343918648520. Its totient is φ = 1143397446912.

The previous prime is 1243302513307. The next prime is 1243302513403. The reversal of 1243302513401 is 1043152033421.

It can be written as a sum of positive squares in 4 ways, for example, as 160144032400 + 1083158481001 = 400180^2 + 1040749^2 .

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 1243302513401 - 2³⁴ = 1226122644217 is a prime.

It is a super-2 number, since 2×1243302513401² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243302513403) 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, 177763520 + ... + 177770513.

It is an arithmetic number, because the mean of its divisors is an integer number (167989831065).

Almost surely, 2^{1243302513401} is an apocalyptic number.

It is an amenable number.

1243302513401 is a deficient number, since it is larger than the sum of its proper divisors (100616135119).

1243302513401 is a wasteful number, since it uses less digits than its factorization.

1243302513401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355534315.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 1243302513401 its reverse (1043152033421), we get a palindrome (2286454546822).

The spelling of 1243302513401 in words is "one trillion, two hundred forty-three billion, three hundred two million, five hundred thirteen thousand, four hundred one".