1310143421 has 16 divisors (see below), whose sum is σ = 1377911808. Its totient is φ = 1244073600.

The previous prime is 1310143409. The next prime is 1310143481. The reversal of 1310143421 is 1243410131.

It is a cyclic number.

It is not a de Polignac number, because 1310143421 - 2²⁶ = 1243034557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1310143393 and 1310143402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310143481) 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, 1374281 + ... + 1375233.

It is an arithmetic number, because the mean of its divisors is an integer number (86119488).

Almost surely, 2^1310143421 is an apocalyptic number.

It is an amenable number.

1310143421 is a deficient number, since it is larger than the sum of its proper divisors (67768387).

1310143421 is an equidigital number, since it uses as much as digits as its factorization.

1310143421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1310143421 is about 36195.9033731719. The cubic root of 1310143421 is about 1094.2241109470.

Adding to 1310143421 its reverse (1243410131), we get a palindrome (2553553552).

The spelling of 1310143421 in words is "one billion, three hundred ten million, one hundred forty-three thousand, four hundred twenty-one".