1011131023144 has 16 divisors (see below), whose sum is σ = 2068222547520. Its totient is φ = 459605010480.

The previous prime is 1011131023139. The next prime is 1011131023153. The reversal of 1011131023144 is 4413201311101.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5745062544 + ... + 5745062719.

It is an arithmetic number, because the mean of its divisors is an integer number (129263909220).

Almost surely, 2^{1011131023144} is an apocalyptic number.

It is an amenable number.

1011131023144 is an abundant number, since it is smaller than the sum of its proper divisors (1057091524376).

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

1011131023144 is a wasteful number, since it uses less digits than its factorization.

1011131023144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11490125280 (or 11490125276 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 1011131023144 its reverse (4413201311101), we get a palindrome (5424332334245).

The spelling of 1011131023144 in words is "one trillion, eleven billion, one hundred thirty-one million, twenty-three thousand, one hundred forty-four".