1351116811 has 4 divisors (see below), whose sum is σ = 1473945624. Its totient is φ = 1228288000.

The previous prime is 1351116787. The next prime is 1351116821. The reversal of 1351116811 is 1186111531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1186111531 = 11 ⋅107828321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1351116811 is a prime.

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 1351116811.

It is not an unprimeable number, because it can be changed into a prime (1351116821) 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, 61414390 + ... + 61414411.

It is an arithmetic number, because the mean of its divisors is an integer number (368486406).

Almost surely, 2^1351116811 is an apocalyptic number.

1351116811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1351116811 is a deficient number, since it is larger than the sum of its proper divisors (122828813).

1351116811 is a wasteful number, since it uses less digits than its factorization.

1351116811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122828812.

The product of its digits is 720, while the sum is 28.

The square root of 1351116811 is about 36757.5408725883. The cubic root of 1351116811 is about 1105.5141335079.

The spelling of 1351116811 in words is "one billion, three hundred fifty-one million, one hundred sixteen thousand, eight hundred eleven".