101030020 has 48 divisors (see below), whose sum is σ = 261128448. Its totient is φ = 31973760.

The previous prime is 101030009. The next prime is 101030021. The reversal of 101030020 is 20030101.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a junction number, because it is equal to n+sod(n) for n = 101029985 and 101030012.

It is not an unprimeable number, because it can be changed into a prime (101030021) 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, 25936 + ... + 29575.

It is an arithmetic number, because the mean of its divisors is an integer number (5440176).

Almost surely, 2^101030020 is an apocalyptic number.

101030020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101030020 is an abundant number, since it is smaller than the sum of its proper divisors (160098428).

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

101030020 is a wasteful number, since it uses less digits than its factorization.

101030020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55540 (or 55538 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 101030020 is about 10051.3690609787. The cubic root of 101030020 is about 465.7470859542.

Adding to 101030020 its reverse (20030101), we get a palindrome (121060121).

The spelling of 101030020 in words is "one hundred one million, thirty thousand, twenty".