101320131113021 has 4 divisors (see below), whose sum is σ = 101320152167772. Its totient is φ = 101320110058272.

The previous prime is 101320131112903. The next prime is 101320131113057. The reversal of 101320131113021 is 120311131023101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37916160912100 + 63403970200921 = 6157610^2 + 7962661^2 .

It is a cyclic number.

It is not a de Polignac number, because 101320131113021 - 2⁴² = 96922084601917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101320131112984 and 101320131113002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101320131113921) 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, 639041 + ... + 14249513.

It is an arithmetic number, because the mean of its divisors is an integer number (25330038041943).

Almost surely, 2^{101320131113021} is an apocalyptic number.

It is an amenable number.

101320131113021 is a deficient number, since it is larger than the sum of its proper divisors (21054751).

101320131113021 is an equidigital number, since it uses as much as digits as its factorization.

101320131113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21054750.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 101320131113021 its reverse (120311131023101), we get a palindrome (221631262136122).

The spelling of 101320131113021 in words is "one hundred one trillion, three hundred twenty billion, one hundred thirty-one million, one hundred thirteen thousand, twenty-one".