102343142220442 has 8 divisors (see below), whose sum is σ = 157084822943136. Its totient is φ = 49981534572732.

The previous prime is 102343142220437. The next prime is 102343142220491. The reversal of 102343142220442 is 244022241343201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×102343142220442² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102343142220398 and 102343142220407.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595018268638 + ... + 595018268809.

It is an arithmetic number, because the mean of its divisors is an integer number (19635602867892).

Almost surely, 2^{102343142220442} is an apocalyptic number.

102343142220442 is a deficient number, since it is larger than the sum of its proper divisors (54741680722694).

102343142220442 is a wasteful number, since it uses less digits than its factorization.

102343142220442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190036537492.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 102343142220442 its reverse (244022241343201), we get a palindrome (346365383563643).

The spelling of 102343142220442 in words is "one hundred two trillion, three hundred forty-three billion, one hundred forty-two million, two hundred twenty thousand, four hundred forty-two".