101121050655 has 24 divisors (see below), whose sum is σ = 175320327312. Its totient is φ = 53917737984.

The previous prime is 101121050651. The next prime is 101121050669. The reversal of 101121050655 is 556050121101.

101121050655 is a `hidden beast` number, since 1 + 0 + 1 + 1 + 2 + 1 + 0 + 5 + 0 + 655 = 666.

It is not a de Polignac number, because 101121050655 - 2² = 101121050651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101121050651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97794 + ... + 460223.

It is an arithmetic number, because the mean of its divisors is an integer number (7305013638).

Almost surely, 2^101121050655 is an apocalyptic number.

101121050655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

101121050655 is a deficient number, since it is larger than the sum of its proper divisors (74199276657).

101121050655 is a wasteful number, since it uses less digits than its factorization.

101121050655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562055 (or 562052 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

Adding to 101121050655 its reverse (556050121101), we get a palindrome (657171171756).

The spelling of 101121050655 in words is "one hundred one billion, one hundred twenty-one million, fifty thousand, six hundred fifty-five".