100561042342 has 8 divisors (see below), whose sum is σ = 151065698616. Its totient is φ = 50205809472.

The previous prime is 100561042319. The next prime is 100561042343. The reversal of 100561042342 is 243240165001.

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

It is a super-2 number, since 2×100561042342² (a number of 23 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 100561042342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100561042343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37354168 + ... + 37356859.

It is an arithmetic number, because the mean of its divisors is an integer number (18883212327).

Almost surely, 2^100561042342 is an apocalyptic number.

100561042342 is a deficient number, since it is larger than the sum of its proper divisors (50504656274).

100561042342 is an equidigital number, since it uses as much as digits as its factorization.

100561042342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74711702.

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 100561042342 in words is "one hundred billion, five hundred sixty-one million, forty-two thousand, three hundred forty-two".