1264313431243 has 8 divisors (see below), whose sum is σ = 1267240788000. Its totient is φ = 1261386290688.

The previous prime is 1264313431231. The next prime is 1264313431261. The reversal of 1264313431243 is 3421343134621.

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 1264313431243 - 2²⁹ = 1263776560331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1264313431643) 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, 21751083 + ... + 21809131.

It is an arithmetic number, because the mean of its divisors is an integer number (158405098500).

Almost surely, 2^{1264313431243} is an apocalyptic number.

1264313431243 is a deficient number, since it is larger than the sum of its proper divisors (2927356757).

1264313431243 is an equidigital number, since it uses as much as digits as its factorization.

1264313431243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108101.

The product of its digits is 124416, while the sum is 37.

Adding to 1264313431243 its reverse (3421343134621), we get a palindrome (4685656565864).

The spelling of 1264313431243 in words is "one trillion, two hundred sixty-four billion, three hundred thirteen million, four hundred thirty-one thousand, two hundred forty-three".