103020023221 has 4 divisors (see below), whose sum is σ = 103806435744. Its totient is φ = 102233610700.

The previous prime is 103020023209. The next prime is 103020023257. The reversal of 103020023221 is 122320020301.

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 103020023221 - 2²¹ = 103017926069 is a prime.

It is a super-2 number, since 2×103020023221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103020023195 and 103020023204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103020023201) 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, 393206065 + ... + 393206326.

It is an arithmetic number, because the mean of its divisors is an integer number (25951608936).

Almost surely, 2^103020023221 is an apocalyptic number.

It is an amenable number.

103020023221 is a deficient number, since it is larger than the sum of its proper divisors (786412523).

103020023221 is an equidigital number, since it uses as much as digits as its factorization.

103020023221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786412522.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 103020023221 its reverse (122320020301), we get a palindrome (225340043522).

The spelling of 103020023221 in words is "one hundred three billion, twenty million, twenty-three thousand, two hundred twenty-one".