101321212021013 has 4 divisors (see below), whose sum is σ = 106653907390560. Its totient is φ = 95988516651468.

The previous prime is 101321212020961. The next prime is 101321212021027. The reversal of 101321212021013 is 310120212123101.

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 101321212021013 - 2¹² = 101321212016917 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 (101321212021093) 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, 2666347684745 + ... + 2666347684782.

It is an arithmetic number, because the mean of its divisors is an integer number (26663476847640).

Almost surely, 2^{101321212021013} is an apocalyptic number.

It is an amenable number.

101321212021013 is a deficient number, since it is larger than the sum of its proper divisors (5332695369547).

101321212021013 is an equidigital number, since it uses as much as digits as its factorization.

101321212021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5332695369546.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 101321212021013 its reverse (310120212123101), we get a palindrome (411441424144114).

The spelling of 101321212021013 in words is "one hundred one trillion, three hundred twenty-one billion, two hundred twelve million, twenty-one thousand, thirteen".