101021011028 has 48 divisors (see below), whose sum is σ = 208419410304. Its totient is φ = 41949325440.

The previous prime is 101021011027. The next prime is 101021011057. The reversal of 101021011028 is 820110120101.

It is a junction number, because it is equal to n+sod(n) for n = 101021010997 and 101021011015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101021011027) 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, 326951 + ... + 555822.

It is an arithmetic number, because the mean of its divisors is an integer number (4342071048).

Almost surely, 2^101021011028 is an apocalyptic number.

It is an amenable number.

101021011028 is an abundant number, since it is smaller than the sum of its proper divisors (107398399276).

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

101021011028 is a wasteful number, since it uses less digits than its factorization.

101021011028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882912 (or 882910 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 101021011028 its reverse (820110120101), we get a palindrome (921131131129).

The spelling of 101021011028 in words is "one hundred one billion, twenty-one million, eleven thousand, twenty-eight".