101331343021 has 2 divisors, whose sum is σ = 101331343022. Its totient is φ = 101331343020.

The previous prime is 101331343007. The next prime is 101331343067. The reversal of 101331343021 is 120343133101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101258240521 + 73102500 = 318211^2 + 8550^2 .

It is a cyclic number.

It is not a de Polignac number, because 101331343021 - 2¹¹ = 101331340973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101331342983 and 101331343001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101331343721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50665671510 + 50665671511.

It is an arithmetic number, because the mean of its divisors is an integer number (50665671511).

Almost surely, 2^101331343021 is an apocalyptic number.

It is an amenable number.

101331343021 is a deficient number, since it is larger than the sum of its proper divisors (1).

101331343021 is an equidigital number, since it uses as much as digits as its factorization.

101331343021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 101331343021 its reverse (120343133101), we get a palindrome (221674476122).

The spelling of 101331343021 in words is "one hundred one billion, three hundred thirty-one million, three hundred forty-three thousand, twenty-one".