111020101121 has 8 divisors (see below), whose sum is σ = 114970978920. Its totient is φ = 107077396608.

The previous prime is 111020101109. The next prime is 111020101133. The reversal of 111020101121 is 121101020111.

It is an interprime number because it is at equal distance from previous prime (111020101109) and next prime (111020101133).

It can be written as a sum of positive squares in 4 ways, for example, as 2804761600 + 108215339521 = 52960^2 + 328961^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 111020101121 - 2¹⁸ = 111019838977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111020101151) 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, 2015666 + ... + 2070011.

It is an arithmetic number, because the mean of its divisors is an integer number (14371372365).

Almost surely, 2^111020101121 is an apocalyptic number.

It is an amenable number.

111020101121 is a deficient number, since it is larger than the sum of its proper divisors (3950877799).

111020101121 is an equidigital number, since it uses as much as digits as its factorization.

111020101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4086643.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111020101121 its reverse (121101020111), we get a palindrome (232121121232).

The spelling of 111020101121 in words is "one hundred eleven billion, twenty million, one hundred one thousand, one hundred twenty-one".