1142040412321 has 2 divisors, whose sum is σ = 1142040412322. Its totient is φ = 1142040412320.

The previous prime is 1142040412309. The next prime is 1142040412343. The reversal of 1142040412321 is 1232140402411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 830721050721 + 311319361600 = 911439^2 + 557960^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142040412321 - 2⁷ = 1142040412193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1142040412421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571020206160 + 571020206161.

It is an arithmetic number, because the mean of its divisors is an integer number (571020206161).

Almost surely, 2^{1142040412321} is an apocalyptic number.

It is an amenable number.

1142040412321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142040412321 is an equidigital number, since it uses as much as digits as its factorization.

1142040412321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1142040412321 its reverse (1232140402411), we get a palindrome (2374180814732).

The spelling of 1142040412321 in words is "one trillion, one hundred forty-two billion, forty million, four hundred twelve thousand, three hundred twenty-one".