111020001 has 8 divisors (see below), whose sum is σ = 150819840. Its totient is φ = 72616752.

The previous prime is 111019999. The next prime is 111020003. The reversal of 111020001 is 100020111.

It is an interprime number because it is at equal distance from previous prime (111019999) and next prime (111020003).

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

It is not a de Polignac number, because 111020001 - 2¹ = 111019999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111020003) 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, 348961 + ... + 349278.

It is an arithmetic number, because the mean of its divisors is an integer number (18852480).

Almost surely, 2^111020001 is an apocalyptic number.

It is an amenable number.

111020001 is a deficient number, since it is larger than the sum of its proper divisors (39799839).

111020001 is an equidigital number, since it uses as much as digits as its factorization.

111020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698295.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 111020001 is about 10536.6029155511. The cubic root of 111020001 is about 480.6184173176.

Adding to 111020001 its reverse (100020111), we get a palindrome (211040112).

The spelling of 111020001 in words is "one hundred eleven million, twenty thousand, one".