1243214440142 has 32 divisors (see below), whose sum is σ = 1882702815840. Its totient is φ = 615670064640.

The previous prime is 1243214440133. The next prime is 1243214440177. The reversal of 1243214440142 is 2410444123421.

It is a junction number, because it is equal to n+sod(n) for n = 1243214440099 and 1243214440108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235767218 + ... + 235772490.

It is an arithmetic number, because the mean of its divisors is an integer number (58834462995).

Almost surely, 2^{1243214440142} is an apocalyptic number.

1243214440142 is a deficient number, since it is larger than the sum of its proper divisors (639488375698).

1243214440142 is a wasteful number, since it uses less digits than its factorization.

1243214440142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7268.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 1243214440142 its reverse (2410444123421), we get a palindrome (3653658563563).

The spelling of 1243214440142 in words is "one trillion, two hundred forty-three billion, two hundred fourteen million, four hundred forty thousand, one hundred forty-two".