1011078172811 has 32 divisors (see below), whose sum is σ = 1238551216128. Its totient is φ = 806420482560.

The previous prime is 1011078172781. The next prime is 1011078172831. The reversal of 1011078172811 is 1182718701101.

It is a happy number.

1011078172811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1011078172811 - 2⁶ = 1011078172747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011078172831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52131926 + ... + 52151316.

It is an arithmetic number, because the mean of its divisors is an integer number (38704725504).

Almost surely, 2^{1011078172811} is an apocalyptic number.

1011078172811 is a deficient number, since it is larger than the sum of its proper divisors (227473043317).

1011078172811 is a wasteful number, since it uses less digits than its factorization.

1011078172811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28211.

The product of its (nonzero) digits is 6272, while the sum is 38.

The spelling of 1011078172811 in words is "one trillion, eleven billion, seventy-eight million, one hundred seventy-two thousand, eight hundred eleven".