100721423047146 has 64 divisors (see below), whose sum is σ = 220365213465600. Its totient is φ = 30437118092160.

The previous prime is 100721423047129. The next prime is 100721423047163. The reversal of 100721423047146 is 641740324127001.

It is an interprime number because it is at equal distance from previous prime (100721423047129) and next prime (100721423047163).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100721423047098 and 100721423047107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34913955 + ... + 37688553.

It is an arithmetic number, because the mean of its divisors is an integer number (3443206460400).

Almost surely, 2^{100721423047146} is an apocalyptic number.

100721423047146 is an abundant number, since it is smaller than the sum of its proper divisors (119643790418454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100721423047146 is a wasteful number, since it uses less digits than its factorization.

100721423047146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776139.

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 100721423047146 in words is "one hundred trillion, seven hundred twenty-one billion, four hundred twenty-three million, forty-seven thousand, one hundred forty-six".