101013012021 has 8 divisors (see below), whose sum is σ = 134686087744. Its totient is φ = 67340972160.

The previous prime is 101013011989. The next prime is 101013012049. The reversal of 101013012021 is 120210310101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101013012021 - 2⁵ = 101013011989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101013011988 and 101013012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101013012071) 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 7 ways as a sum of consecutive naturals, for example, 7845 + ... + 449541.

It is an arithmetic number, because the mean of its divisors is an integer number (16835760968).

Almost surely, 2^101013012021 is an apocalyptic number.

It is an amenable number.

101013012021 is a deficient number, since it is larger than the sum of its proper divisors (33673075723).

101013012021 is an equidigital number, since it uses as much as digits as its factorization.

101013012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517931.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 101013012021 its reverse (120210310101), we get a palindrome (221223322122).

The spelling of 101013012021 in words is "one hundred one billion, thirteen million, twelve thousand, twenty-one".