101101012020 has 72 divisors (see below), whose sum is σ = 306702535776. Its totient is φ = 26957679552.

The previous prime is 101101011983. The next prime is 101101012021. The reversal of 101101012020 is 20210101101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 101101011993 and 101101012011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101101012021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2514999 + ... + 2554881.

Almost surely, 2^101101012020 is an apocalyptic number.

101101012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101101012020 is an abundant number, since it is smaller than the sum of its proper divisors (205601523756).

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

101101012020 is a wasteful number, since it uses less digits than its factorization.

101101012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53981 (or 53976 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 101101012020 its reverse (20210101101), we get a palindrome (121311113121).

The spelling of 101101012020 in words is "one hundred one billion, one hundred one million, twelve thousand, twenty".