61281011102 has 8 divisors (see below), whose sum is σ = 91925950512. Its totient is φ = 30639027600.

The previous prime is 61281011093. The next prime is 61281011117. The reversal of 61281011102 is 20111018216.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686399 + ... + 770522.

It is an arithmetic number, because the mean of its divisors is an integer number (11490743814).

Almost surely, 2^61281011102 is an apocalyptic number.

61281011102 is a deficient number, since it is larger than the sum of its proper divisors (30644939410).

61281011102 is a wasteful number, since it uses less digits than its factorization.

61281011102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477954.

The product of its (nonzero) digits is 192, while the sum is 23.

Adding to 61281011102 its reverse (20111018216), we get a palindrome (81392029318).

The spelling of 61281011102 in words is "sixty-one billion, two hundred eighty-one million, eleven thousand, one hundred two".