111361010421 has 8 divisors (see below), whose sum is σ = 148484627104. Its totient is φ = 74239033680.

The previous prime is 111361010413. The next prime is 111361010503. The reversal of 111361010421 is 124010163111.

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

It is not a de Polignac number, because 111361010421 - 2³ = 111361010413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111361010401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241666 + ... + 530211.

It is an arithmetic number, because the mean of its divisors is an integer number (18560578388).

Almost surely, 2^111361010421 is an apocalyptic number.

It is an amenable number.

111361010421 is a deficient number, since it is larger than the sum of its proper divisors (37123616683).

111361010421 is an equidigital number, since it uses as much as digits as its factorization.

111361010421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819971.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 111361010421 its reverse (124010163111), we get a palindrome (235371173532).

The spelling of 111361010421 in words is "one hundred eleven billion, three hundred sixty-one million, ten thousand, four hundred twenty-one".