101234808627821 has 16 divisors (see below), whose sum is σ = 116943469089408. Its totient is φ = 86611244236800.

The previous prime is 101234808627817. The next prime is 101234808627839. The reversal of 101234808627821 is 128726808432101.

It is a cyclic number.

It is not a de Polignac number, because 101234808627821 - 2² = 101234808627817 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101234808627871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18769940 + ... + 23553773.

It is an arithmetic number, because the mean of its divisors is an integer number (7308966818088).

Almost surely, 2^{101234808627821} is an apocalyptic number.

101234808627821 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101234808627821 is a deficient number, since it is larger than the sum of its proper divisors (15708660461587).

101234808627821 is a wasteful number, since it uses less digits than its factorization.

101234808627821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42336532.

The product of its (nonzero) digits is 2064384, while the sum is 53.

The spelling of 101234808627821 in words is "one hundred one trillion, two hundred thirty-four billion, eight hundred eight million, six hundred twenty-seven thousand, eight hundred twenty-one".