1346420313431 has 4 divisors (see below), whose sum is σ = 1346451018432. Its totient is φ = 1346389608432.

The previous prime is 1346420313409. The next prime is 1346420313439. The reversal of 1346420313431 is 1343130246431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1346420313431 - 2³⁴ = 1329240444247 is a prime.

It is a super-2 number, since 2×1346420313431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1346420313391 and 1346420313400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346420313439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15286631 + ... + 15374456.

It is an arithmetic number, because the mean of its divisors is an integer number (336612754608).

Almost surely, 2^{1346420313431} is an apocalyptic number.

1346420313431 is a deficient number, since it is larger than the sum of its proper divisors (30705001).

1346420313431 is an equidigital number, since it uses as much as digits as its factorization.

1346420313431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30705000.

The product of its (nonzero) digits is 62208, while the sum is 35.

Adding to 1346420313431 its reverse (1343130246431), we get a palindrome (2689550559862).

The spelling of 1346420313431 in words is "one trillion, three hundred forty-six billion, four hundred twenty million, three hundred thirteen thousand, four hundred thirty-one".