101288821056 has 28 divisors (see below), whose sum is σ = 267993339552. Its totient is φ = 33762940288.

The previous prime is 101288821033. The next prime is 101288821069. The reversal of 101288821056 is 650128882101.

It is a junction number, because it is equal to n+sod(n) for n = 101288820999 and 101288821017.

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, 263772780 + ... + 263773163.

Almost surely, 2^101288821056 is an apocalyptic number.

101288821056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

101288821056 is an abundant number, since it is smaller than the sum of its proper divisors (166704518496).

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

101288821056 is an equidigital number, since it uses as much as digits as its factorization.

101288821056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527545958 (or 527545948 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 42.

The spelling of 101288821056 in words is "one hundred one billion, two hundred eighty-eight million, eight hundred twenty-one thousand, fifty-six".