1356105020311 has 4 divisors (see below), whose sum is σ = 1356247612624. Its totient is φ = 1355962428000.

The previous prime is 1356105020293. The next prime is 1356105020329. The reversal of 1356105020311 is 1130205016531.

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

It is an interprime number because it is at equal distance from previous prime (1356105020293) and next prime (1356105020329).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1356105020311 is a prime.

It is a super-2 number, since 2×1356105020311² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1356105020311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356105020351) 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, 71281890 + ... + 71300911.

It is an arithmetic number, because the mean of its divisors is an integer number (339061903156).

Almost surely, 2^{1356105020311} is an apocalyptic number.

1356105020311 is a deficient number, since it is larger than the sum of its proper divisors (142592313).

1356105020311 is an equidigital number, since it uses as much as digits as its factorization.

1356105020311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142592312.

The product of its (nonzero) digits is 2700, while the sum is 28.

The spelling of 1356105020311 in words is "one trillion, three hundred fifty-six billion, one hundred five million, twenty thousand, three hundred eleven".