61001001101 has 8 divisors (see below), whose sum is σ = 61926724704. Its totient is φ = 60075726480.

The previous prime is 61001001091. The next prime is 61001001121. The reversal of 61001001101 is 10110010016.

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 61001001101 - 2¹⁸ = 61000738957 is a prime.

It is a super-2 number, since 2×61001001101² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61001001121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166766 + ... + 387056.

It is an arithmetic number, because the mean of its divisors is an integer number (7740840588).

Almost surely, 2^61001001101 is an apocalyptic number.

It is an amenable number.

61001001101 is a deficient number, since it is larger than the sum of its proper divisors (925723603).

61001001101 is a wasteful number, since it uses less digits than its factorization.

61001001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224491.

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

Adding to 61001001101 its reverse (10110010016), we get a palindrome (71111011117).

The spelling of 61001001101 in words is "sixty-one billion, one million, one thousand, one hundred one".