1373251243143 has 16 divisors (see below), whose sum is σ = 1972197069920. Its totient is φ = 844928060544.

The previous prime is 1373251243129. The next prime is 1373251243187. The reversal of 1373251243143 is 3413421523731.

It is not a de Polignac number, because 1373251243143 - 2¹⁷ = 1373251112071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373251243543) 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, 2893948 + ... + 3334881.

It is an arithmetic number, because the mean of its divisors is an integer number (123262316870).

Almost surely, 2^{1373251243143} is an apocalyptic number.

1373251243143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1373251243143 is a deficient number, since it is larger than the sum of its proper divisors (598945826777).

1373251243143 is a wasteful number, since it uses less digits than its factorization.

1373251243143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6234498.

The product of its digits is 181440, while the sum is 39.

Adding to 1373251243143 its reverse (3413421523731), we get a palindrome (4786672766874).

The spelling of 1373251243143 in words is "one trillion, three hundred seventy-three billion, two hundred fifty-one million, two hundred forty-three thousand, one hundred forty-three".