1423111142 has 16 divisors (see below), whose sum is σ = 2213438400. Its totient is φ = 685413120.

The previous prime is 1423111121. The next prime is 1423111163. The reversal of 1423111142 is 2411113241.

It is an interprime number because it is at equal distance from previous prime (1423111121) and next prime (1423111163).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3467 + ... + 53462.

It is an arithmetic number, because the mean of its divisors is an integer number (138339900).

Almost surely, 2^1423111142 is an apocalyptic number.

1423111142 is a deficient number, since it is larger than the sum of its proper divisors (790327258).

1423111142 is a wasteful number, since it uses less digits than its factorization.

1423111142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57391.

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

The square root of 1423111142 is about 37724.1453448584. The cubic root of 1423111142 is about 1124.8111332657.

Adding to 1423111142 its reverse (2411113241), we get a palindrome (3834224383).

The spelling of 1423111142 in words is "one billion, four hundred twenty-three million, one hundred eleven thousand, one hundred forty-two".