111445541342 has 4 divisors (see below), whose sum is σ = 167168312016. Its totient is φ = 55722770670.

The previous prime is 111445541303. The next prime is 111445541381. The reversal of 111445541342 is 243145544111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243145544111 = 743 ⋅327248377.

It is an interprime number because it is at equal distance from previous prime (111445541303) and next prime (111445541381).

It is a super-2 number, since 2×111445541342² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 27861385334 + ... + 27861385337.

It is an arithmetic number, because the mean of its divisors is an integer number (41792078004).

Almost surely, 2^111445541342 is an apocalyptic number.

111445541342 is a deficient number, since it is larger than the sum of its proper divisors (55722770674).

111445541342 is an equidigital number, since it uses as much as digits as its factorization.

111445541342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55722770673.

The product of its digits is 38400, while the sum is 35.

The spelling of 111445541342 in words is "one hundred eleven billion, four hundred forty-five million, five hundred forty-one thousand, three hundred forty-two".