103320203131021 has 4 divisors (see below), whose sum is σ = 107812385875872. Its totient is φ = 98828020386172.

The previous prime is 103320203130847. The next prime is 103320203131027. The reversal of 103320203131021 is 120131302023301.

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 a de Polignac number, because none of the positive numbers 2^k-103320203131021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103320203130983 and 103320203131001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103320203131027) 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, 2246091372391 + ... + 2246091372436.

It is an arithmetic number, because the mean of its divisors is an integer number (26953096468968).

Almost surely, 2^{103320203131021} is an apocalyptic number.

It is an amenable number.

103320203131021 is a deficient number, since it is larger than the sum of its proper divisors (4492182744851).

103320203131021 is an equidigital number, since it uses as much as digits as its factorization.

103320203131021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4492182744850.

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

Adding to 103320203131021 its reverse (120131302023301), we get a palindrome (223451505154322).

The spelling of 103320203131021 in words is "one hundred three trillion, three hundred twenty billion, two hundred three million, one hundred thirty-one thousand, twenty-one".