20255122321003 has 16 divisors (see below), whose sum is σ = 21461400576000. Its totient is φ = 19085315745600.

The previous prime is 20255122320977. The next prime is 20255122321019. The reversal of 20255122321003 is 30012322155202.

It is a cyclic number.

It is not a de Polignac number, because 20255122321003 - 2⁵ = 20255122320971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20255122327003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15334075 + ... + 16602532.

It is an arithmetic number, because the mean of its divisors is an integer number (1341337536000).

Almost surely, 2^{20255122321003} is an apocalyptic number.

20255122321003 is a deficient number, since it is larger than the sum of its proper divisors (1206278254997).

20255122321003 is a wasteful number, since it uses less digits than its factorization.

20255122321003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31937178.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 20255122321003 its reverse (30012322155202), we get a palindrome (50267444476205).

The spelling of 20255122321003 in words is "twenty trillion, two hundred fifty-five billion, one hundred twenty-two million, three hundred twenty-one thousand, three".