1311043321402 has 8 divisors (see below), whose sum is σ = 1979588591712. Its totient is φ = 651180457500.

The previous prime is 1311043321363. The next prime is 1311043321429. The reversal of 1311043321402 is 2041233401131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2170601224 + ... + 2170601827.

It is an arithmetic number, because the mean of its divisors is an integer number (247448573964).

Almost surely, 2^{1311043321402} is an apocalyptic number.

1311043321402 is a deficient number, since it is larger than the sum of its proper divisors (668545270310).

1311043321402 is a wasteful number, since it uses less digits than its factorization.

1311043321402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4341203204.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1311043321402 its reverse (2041233401131), we get a palindrome (3352276722533).

The spelling of 1311043321402 in words is "one trillion, three hundred eleven billion, forty-three million, three hundred twenty-one thousand, four hundred two".