1042144231351 has 4 divisors (see below), whose sum is σ = 1066380143752. Its totient is φ = 1017908318952.

The previous prime is 1042144231313. The next prime is 1042144231367. The reversal of 1042144231351 is 1531324412401.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042144231351 is a prime.

It is a super-2 number, since 2×1042144231351² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042144231301) 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, 12117956136 + ... + 12117956221.

It is an arithmetic number, because the mean of its divisors is an integer number (266595035938).

Almost surely, 2^{1042144231351} is an apocalyptic number.

1042144231351 is a deficient number, since it is larger than the sum of its proper divisors (24235912401).

1042144231351 is an equidigital number, since it uses as much as digits as its factorization.

1042144231351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24235912400.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 1042144231351 its reverse (1531324412401), we get a palindrome (2573468643752).

The spelling of 1042144231351 in words is "one trillion, forty-two billion, one hundred forty-four million, two hundred thirty-one thousand, three hundred fifty-one".