1243120350413 has 8 divisors (see below), whose sum is σ = 1283700132000. Its totient is φ = 1203071023728.

The previous prime is 1243120350341. The next prime is 1243120350419. The reversal of 1243120350413 is 3140530213421.

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 1243120350413 - 2¹⁶ = 1243120284877 is a prime.

It is a super-2 number, since 2×1243120350413² (a number of 25 digits) contains 22 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 (1243120350419) 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, 132608963 + ... + 132618336.

It is an arithmetic number, because the mean of its divisors is an integer number (160462516500).

Almost surely, 2^{1243120350413} is an apocalyptic number.

It is an amenable number.

1243120350413 is a deficient number, since it is larger than the sum of its proper divisors (40579781587).

1243120350413 is a wasteful number, since it uses less digits than its factorization.

1243120350413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265227451.

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

Adding to 1243120350413 its reverse (3140530213421), we get a palindrome (4383650563834).

The spelling of 1243120350413 in words is "one trillion, two hundred forty-three billion, one hundred twenty million, three hundred fifty thousand, four hundred thirteen".