1101402811 has 4 divisors (see below), whose sum is σ = 1159371400. Its totient is φ = 1043434224.

The previous prime is 1101402739. The next prime is 1101402833. The reversal of 1101402811 is 1182041011.

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

It is a cyclic number.

It is not a de Polignac number, because 1101402811 - 2⁷ = 1101402683 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 57968569 = 1101402811 / (1 + 1 + 0 + 1 + 4 + 0 + 2 + 8 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101402871) 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, 28984266 + ... + 28984303.

It is an arithmetic number, because the mean of its divisors is an integer number (289842850).

Almost surely, 2^1101402811 is an apocalyptic number.

1101402811 is a deficient number, since it is larger than the sum of its proper divisors (57968589).

1101402811 is an equidigital number, since it uses as much as digits as its factorization.

1101402811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57968588.

The product of its (nonzero) digits is 64, while the sum is 19.

The square root of 1101402811 is about 33187.3893369153. The cubic root of 1101402811 is about 1032.7187453838.

Adding to 1101402811 its reverse (1182041011), we get a palindrome (2283443822).

The spelling of 1101402811 in words is "one billion, one hundred one million, four hundred two thousand, eight hundred eleven".