1311445504402 has 8 divisors (see below), whose sum is σ = 2146001734512. Its totient is φ = 596111592900.

The previous prime is 1311445504399. The next prime is 1311445504517. The reversal of 1311445504402 is 2044055441131.

It is a happy number.

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

It is a super-2 number, since 2×1311445504402² (a number of 25 digits) contains 22 as substring.

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, 29805579624 + ... + 29805579667.

It is an arithmetic number, because the mean of its divisors is an integer number (268250216814).

Almost surely, 2^{1311445504402} is an apocalyptic number.

1311445504402 is a deficient number, since it is larger than the sum of its proper divisors (834556230110).

1311445504402 is a wasteful number, since it uses less digits than its factorization.

1311445504402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59611159304.

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 1311445504402 in words is "one trillion, three hundred eleven billion, four hundred forty-five million, five hundred four thousand, four hundred two".