101121113 has 4 divisors (see below), whose sum is σ = 101170740. Its totient is φ = 101071488.

The previous prime is 101121109. The next prime is 101121131. The reversal of 101121113 is 311121101.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 63568729 + 37552384 = 7973^2 + 6128^2 .

It is a cyclic number.

It is not a de Polignac number, because 101121113 - 2² = 101121109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101121094 and 101121103.

It is not an unprimeable number, because it can be changed into a prime (101121413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21620 + ... + 25877.

It is an arithmetic number, because the mean of its divisors is an integer number (25292685).

Almost surely, 2^101121113 is an apocalyptic number.

It is an amenable number.

101121113 is a deficient number, since it is larger than the sum of its proper divisors (49627).

101121113 is an equidigital number, since it uses as much as digits as its factorization.

101121113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49626.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 101121113 is about 10055.8994127825. The cubic root of 101121113 is about 465.8870230889.

Adding to 101121113 its reverse (311121101), we get a palindrome (412242214).

The spelling of 101121113 in words is "one hundred one million, one hundred twenty-one thousand, one hundred thirteen".