1042231377889 has 4 divisors (see below), whose sum is σ = 1122403022356. Its totient is φ = 962059733424.

The previous prime is 1042231377881. The next prime is 1042231377991. The reversal of 1042231377889 is 9887731322401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 677394841600 + 364836536289 = 823040^2 + 604017^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042231377889 - 2³ = 1042231377881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042231377881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40085822214 + ... + 40085822239.

It is an arithmetic number, because the mean of its divisors is an integer number (280600755589).

Almost surely, 2^{1042231377889} is an apocalyptic number.

It is an amenable number.

1042231377889 is a deficient number, since it is larger than the sum of its proper divisors (80171644467).

1042231377889 is an equidigital number, since it uses as much as digits as its factorization.

1042231377889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80171644466.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 1042231377889 in words is "one trillion, forty-two billion, two hundred thirty-one million, three hundred seventy-seven thousand, eight hundred eighty-nine".