1142431234213 has 4 divisors (see below), whose sum is σ = 1149997004128. Its totient is φ = 1134865464300.

The previous prime is 1142431234207. The next prime is 1142431234223. The reversal of 1142431234213 is 3124321342411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142431234213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142431234223) 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, 3782884731 + ... + 3782885032.

It is an arithmetic number, because the mean of its divisors is an integer number (287499251032).

Almost surely, 2^{1142431234213} is an apocalyptic number.

It is an amenable number.

1142431234213 is a deficient number, since it is larger than the sum of its proper divisors (7565769915).

1142431234213 is an equidigital number, since it uses as much as digits as its factorization.

1142431234213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7565769914.

The product of its digits is 13824, while the sum is 31.

Adding to 1142431234213 its reverse (3124321342411), we get a palindrome (4266752576624).

The spelling of 1142431234213 in words is "one trillion, one hundred forty-two billion, four hundred thirty-one million, two hundred thirty-four thousand, two hundred thirteen".