1111142342 has 4 divisors (see below), whose sum is σ = 1666713516. Its totient is φ = 555571170.

The previous prime is 1111142341. The next prime is 1111142399. The reversal of 1111142342 is 2432411111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111142341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277785584 + ... + 277785587.

It is an arithmetic number, because the mean of its divisors is an integer number (416678379).

Almost surely, 2^1111142342 is an apocalyptic number.

1111142342 is a deficient number, since it is larger than the sum of its proper divisors (555571174).

1111142342 is an equidigital number, since it uses as much as digits as its factorization.

1111142342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555571173.

The product of its digits is 192, while the sum is 20.

The square root of 1111142342 is about 33333.8017933748. The cubic root of 1111142342 is about 1035.7538727237.

Adding to 1111142342 its reverse (2432411111), we get a palindrome (3543553453).

The spelling of 1111142342 in words is "one billion, one hundred eleven million, one hundred forty-two thousand, three hundred forty-two".