1311353402408 has 16 divisors (see below), whose sum is σ = 2810043005280. Its totient is φ = 562008601008.

The previous prime is 1311353402399. The next prime is 1311353402453. The reversal of 1311353402408 is 8042043531131.

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, 11708512466 + ... + 11708512577.

It is an arithmetic number, because the mean of its divisors is an integer number (175627687830).

Almost surely, 2^{1311353402408} is an apocalyptic number.

It is an amenable number.

1311353402408 is an abundant number, since it is smaller than the sum of its proper divisors (1498689602872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311353402408 is a wasteful number, since it uses less digits than its factorization.

1311353402408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23417025056 (or 23417025052 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 1311353402408 its reverse (8042043531131), we get a palindrome (9353396933539).

The spelling of 1311353402408 in words is "one trillion, three hundred eleven billion, three hundred fifty-three million, four hundred two thousand, four hundred eight".