142323020322402 has 128 divisors (see below), whose sum is σ = 308052246528000. Its totient is φ = 43677036297216.

The previous prime is 142323020322397. The next prime is 142323020322437. The reversal of 142323020322402 is 204223020323241.

It is a super-2 number, since 2×142323020322402² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142323020322402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 305313099 + ... + 305778897.

It is an arithmetic number, because the mean of its divisors is an integer number (2406658176000).

Almost surely, 2^{142323020322402} is an apocalyptic number.

142323020322402 is an abundant number, since it is smaller than the sum of its proper divisors (165729226205598).

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

142323020322402 is a wasteful number, since it uses less digits than its factorization.

142323020322402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466280.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 142323020322402 its reverse (204223020323241), we get a palindrome (346546040645643).

The spelling of 142323020322402 in words is "one hundred forty-two trillion, three hundred twenty-three billion, twenty million, three hundred twenty-two thousand, four hundred two".