1142271137781 has 24 divisors (see below), whose sum is σ = 1723261419360. Its totient is φ = 728374437216.

The previous prime is 1142271137723. The next prime is 1142271137827. The reversal of 1142271137781 is 1877311722411.

1142271137781 is a `hidden beast` number, since 1 + 1 + 4 + 2 + 271 + 1 + 377 + 8 + 1 = 666.

It is not a de Polignac number, because 1142271137781 - 2¹⁵ = 1142271105013 is a prime.

It is a super-2 number, since 2×1142271137781² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142271133781) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 29050215 + ... + 29089508.

It is an arithmetic number, because the mean of its divisors is an integer number (71802559140).

Almost surely, 2^{1142271137781} is an apocalyptic number.

It is an amenable number.

1142271137781 is a deficient number, since it is larger than the sum of its proper divisors (580990281579).

1142271137781 is a wasteful number, since it uses less digits than its factorization.

1142271137781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58139825 (or 58139822 counting only the distinct ones).

The product of its digits is 131712, while the sum is 45.

The spelling of 1142271137781 in words is "one trillion, one hundred forty-two billion, two hundred seventy-one million, one hundred thirty-seven thousand, seven hundred eighty-one".