101320130320021 has 4 divisors (see below), whose sum is σ = 102540854781792. Its totient is φ = 100099405858252.

The previous prime is 101320130319997. The next prime is 101320130320033. The reversal of 101320130320021 is 120023031023101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101320130320021 - 2⁷ = 101320130319893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101320130321021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610362230761 + ... + 610362230926.

It is an arithmetic number, because the mean of its divisors is an integer number (25635213695448).

Almost surely, 2^{101320130320021} is an apocalyptic number.

It is an amenable number.

101320130320021 is a deficient number, since it is larger than the sum of its proper divisors (1220724461771).

101320130320021 is an equidigital number, since it uses as much as digits as its factorization.

101320130320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220724461770.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 101320130320021 its reverse (120023031023101), we get a palindrome (221343161343122).

The spelling of 101320130320021 in words is "one hundred one trillion, three hundred twenty billion, one hundred thirty million, three hundred twenty thousand, twenty-one".