10115501020 has 48 divisors (see below), whose sum is σ = 22019376960. Its totient is φ = 3898797056.

The previous prime is 10115500981. The next prime is 10115501021. The reversal of 10115501020 is 2010551101.

It is a junction number, because it is equal to n+sod(n) for n = 10115500985 and 10115501003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10115501021) 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, 274404 + ... + 309076.

It is an arithmetic number, because the mean of its divisors is an integer number (458737020).

Almost surely, 2^10115501020 is an apocalyptic number.

10115501020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10115501020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11009688480).

10115501020 is an abundant number, since it is smaller than the sum of its proper divisors (11903875940).

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

10115501020 is a wasteful number, since it uses less digits than its factorization.

10115501020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35214 (or 35212 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 16.

The spelling of 10115501020 in words is "ten billion, one hundred fifteen million, five hundred one thousand, twenty".