101051500020 has 96 divisors (see below), whose sum is σ = 284753215488. Its totient is φ = 26775245952.

The previous prime is 101051500009. The next prime is 101051500021. The reversal of 101051500020 is 20005150101.

It is a super-2 number, since 2×101051500020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101051500021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7311957 + ... + 7325763.

It is an arithmetic number, because the mean of its divisors is an integer number (2966179328).

Almost surely, 2^101051500020 is an apocalyptic number.

101051500020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101051500020 is an abundant number, since it is smaller than the sum of its proper divisors (183701715468).

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

101051500020 is a wasteful number, since it uses less digits than its factorization.

101051500020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14589 (or 14587 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

Adding to 101051500020 its reverse (20005150101), we get a palindrome (121056650121).

The spelling of 101051500020 in words is "one hundred one billion, fifty-one million, five hundred thousand, twenty".