101561434342 has 4 divisors (see below), whose sum is σ = 152342151516. Its totient is φ = 50780717170.

The previous prime is 101561434333. The next prime is 101561434423. The reversal of 101561434342 is 243434165101.

101561434342 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 101561434298 and 101561434307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25390358584 + ... + 25390358587.

It is an arithmetic number, because the mean of its divisors is an integer number (38085537879).

Almost surely, 2^101561434342 is an apocalyptic number.

101561434342 is a deficient number, since it is larger than the sum of its proper divisors (50780717174).

101561434342 is an equidigital number, since it uses as much as digits as its factorization.

101561434342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50780717173.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 101561434342 its reverse (243434165101), we get a palindrome (344995599443).

The spelling of 101561434342 in words is "one hundred one billion, five hundred sixty-one million, four hundred thirty-four thousand, three hundred forty-two".