111010121342 has 4 divisors (see below), whose sum is σ = 166515182016. Its totient is φ = 55505060670.

The previous prime is 111010121291. The next prime is 111010121353. The reversal of 111010121342 is 243121010111.

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

It is a self number, because there is not a number n which added to its sum of digits gives 111010121342.

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, 27752530334 + ... + 27752530337.

It is an arithmetic number, because the mean of its divisors is an integer number (41628795504).

Almost surely, 2^111010121342 is an apocalyptic number.

111010121342 is a deficient number, since it is larger than the sum of its proper divisors (55505060674).

111010121342 is an equidigital number, since it uses as much as digits as its factorization.

111010121342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55505060673.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 111010121342 its reverse (243121010111), we get a palindrome (354131131453).

The spelling of 111010121342 in words is "one hundred eleven billion, ten million, one hundred twenty-one thousand, three hundred forty-two".