1242013423422 has 16 divisors (see below), whose sum is σ = 2484037784592. Its totient is φ = 414002651520.

The previous prime is 1242013423411. The next prime is 1242013423423. The reversal of 1242013423422 is 2243243102421.

It is a self number, because there is not a number n which added to its sum of digits gives 1242013423422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242013423423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2335108 + ... + 2817224.

It is an arithmetic number, because the mean of its divisors is an integer number (155252361537).

Almost surely, 2^{1242013423422} is an apocalyptic number.

1242013423422 is an abundant number, since it is smaller than the sum of its proper divisors (1242024361170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242013423422 is a wasteful number, since it uses less digits than its factorization.

1242013423422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911483.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 1242013423422 its reverse (2243243102421), we get a palindrome (3485256525843).

The spelling of 1242013423422 in words is "one trillion, two hundred forty-two billion, thirteen million, four hundred twenty-three thousand, four hundred twenty-two".