1142404243031 has 4 divisors (see below), whose sum is σ = 1192073992752. Its totient is φ = 1092734493312.

The previous prime is 1142404243007. The next prime is 1142404243051. The reversal of 1142404243031 is 1303424042411.

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

It is a cyclic number.

It is not a de Polignac number, because 1142404243031 - 2¹⁴ = 1142404226647 is a prime.

It is a super-2 number, since 2×1142404243031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1142404242985 and 1142404243003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142404243051) 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 3 ways as a sum of consecutive naturals, for example, 24834874826 + ... + 24834874871.

It is an arithmetic number, because the mean of its divisors is an integer number (298018498188).

Almost surely, 2^{1142404243031} is an apocalyptic number.

1142404243031 is a deficient number, since it is larger than the sum of its proper divisors (49669749721).

1142404243031 is an equidigital number, since it uses as much as digits as its factorization.

1142404243031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49669749720.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1142404243031 its reverse (1303424042411), we get a palindrome (2445828285442).

The spelling of 1142404243031 in words is "one trillion, one hundred forty-two billion, four hundred four million, two hundred forty-three thousand, thirty-one".