111742402021642 has 8 divisors (see below), whose sum is σ = 191558403465696. Its totient is φ = 47889600866412.

The previous prime is 111742402021583. The next prime is 111742402021717. The reversal of 111742402021642 is 246120204247111.

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

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, 3990800072188 + ... + 3990800072215.

It is an arithmetic number, because the mean of its divisors is an integer number (23944800433212).

Almost surely, 2^{111742402021642} is an apocalyptic number.

111742402021642 is a deficient number, since it is larger than the sum of its proper divisors (79816001444054).

111742402021642 is an equidigital number, since it uses as much as digits as its factorization.

111742402021642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7981600144412.

The product of its (nonzero) digits is 43008, while the sum is 37.

Adding to 111742402021642 its reverse (246120204247111), we get a palindrome (357862606268753).

The spelling of 111742402021642 in words is "one hundred eleven trillion, seven hundred forty-two billion, four hundred two million, twenty-one thousand, six hundred forty-two".