61113121 has 8 divisors (see below), whose sum is σ = 65260800. Its totient is φ = 57101520.

The previous prime is 61113103. The next prime is 61113131. The reversal of 61113121 is 12131116.

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 61113121 - 2⁵ = 61113089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61113095 and 61113104.

It is not an unprimeable number, because it can be changed into a prime (61113131) 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, 33091 + ... + 34888.

It is an arithmetic number, because the mean of its divisors is an integer number (8157600).

Almost surely, 2^61113121 is an apocalyptic number.

It is an amenable number.

61113121 is a deficient number, since it is larger than the sum of its proper divisors (4147679).

61113121 is a wasteful number, since it uses less digits than its factorization.

61113121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68039.

The product of its digits is 36, while the sum is 16.

The square root of 61113121 is about 7817.4881515740. The cubic root of 61113121 is about 393.8929016543.

Adding to 61113121 its reverse (12131116), we get a palindrome (73244237).

The spelling of 61113121 in words is "sixty-one million, one hundred thirteen thousand, one hundred twenty-one".