101100012020 has 24 divisors (see below), whose sum is σ = 242640029184. Its totient is φ = 34662861216.

The previous prime is 101100012011. The next prime is 101100012029. The reversal of 101100012020 is 20210001101.

It is an interprime number because it is at equal distance from previous prime (101100012011) and next prime (101100012029).

It is a junction number, because it is equal to n+sod(n) for n = 101100011989 and 101100012007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101100012029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361071332 + ... + 361071611.

It is an arithmetic number, because the mean of its divisors is an integer number (10110001216).

Almost surely, 2^101100012020 is an apocalyptic number.

101100012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101100012020 is an abundant number, since it is smaller than the sum of its proper divisors (141540017164).

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

101100012020 is a wasteful number, since it uses less digits than its factorization.

101100012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722142959 (or 722142957 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 101100012020 its reverse (20210001101), we get a palindrome (121310013121).

The spelling of 101100012020 in words is "one hundred one billion, one hundred million, twelve thousand, twenty".