1142344031 has 4 divisors (see below), whose sum is σ = 1173218232. Its totient is φ = 1111469832.

The previous prime is 1142344003. The next prime is 1142344039. The reversal of 1142344031 is 1304432411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1304432411 = 24809 ⋅52579.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142344031 is a prime.

It is a super-2 number, since 2×1142344031² = 2609899770322657922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1142343988 and 1142344006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142344039) 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, 15437045 + ... + 15437118.

It is an arithmetic number, because the mean of its divisors is an integer number (293304558).

Almost surely, 2^1142344031 is an apocalyptic number.

1142344031 is a deficient number, since it is larger than the sum of its proper divisors (30874201).

1142344031 is an equidigital number, since it uses as much as digits as its factorization.

1142344031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30874200.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1142344031 is about 33798.5803104213. The cubic root of 1142344031 is about 1045.3594242977.

Adding to 1142344031 its reverse (1304432411), we get a palindrome (2446776442).

The spelling of 1142344031 in words is "one billion, one hundred forty-two million, three hundred forty-four thousand, thirty-one".