101000001028 has 12 divisors (see below), whose sum is σ = 178572167452. Its totient is φ = 49979381760.

The previous prime is 101000000971. The next prime is 101000001031. The reversal of 101000001028 is 820100000101.

It can be written as a sum of positive squares in 2 ways, for example, as 55855650244 + 45144350784 = 236338^2 + 212472^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101000000999 and 101000001017.

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, 130154253 + ... + 130155028.

Almost surely, 2^101000001028 is an apocalyptic number.

It is an amenable number.

101000001028 is a deficient number, since it is larger than the sum of its proper divisors (77572166424).

101000001028 is a wasteful number, since it uses less digits than its factorization.

101000001028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260309382 (or 260309380 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101000001028 its reverse (820100000101), we get a palindrome (921100001129).

The spelling of 101000001028 in words is "one hundred one billion, one thousand, twenty-eight".