1011322001142 has 48 divisors (see below), whose sum is σ = 2271219305472. Its totient is φ = 325010418480.

The previous prime is 1011322001113. The next prime is 1011322001149. The reversal of 1011322001142 is 2411002231101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011322001149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8864334 + ... + 8977697.

It is an arithmetic number, because the mean of its divisors is an integer number (47317068864).

Almost surely, 2^{1011322001142} is an apocalyptic number.

1011322001142 is an abundant number, since it is smaller than the sum of its proper divisors (1259897304330).

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

1011322001142 is a wasteful number, since it uses less digits than its factorization.

1011322001142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17842153 (or 17842150 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1011322001142 its reverse (2411002231101), we get a palindrome (3422324232243).

The spelling of 1011322001142 in words is "one trillion, eleven billion, three hundred twenty-two million, one thousand, one hundred forty-two".