20530401102231 has 8 divisors (see below), whose sum is σ = 27582828962304. Its totient is φ = 13582453655160.

The previous prime is 20530401102229. The next prime is 20530401102271. The reversal of 20530401102231 is 13220110403502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20530401102231 - 2¹ = 20530401102229 is a prime.

It is a super-2 number, since 2×20530401102231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20530401102221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26120102791 + ... + 26120103576.

It is an arithmetic number, because the mean of its divisors is an integer number (3447853620288).

Almost surely, 2^{20530401102231} is an apocalyptic number.

20530401102231 is a deficient number, since it is larger than the sum of its proper divisors (7052427860073).

20530401102231 is a wasteful number, since it uses less digits than its factorization.

20530401102231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52240206501.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 20530401102231 its reverse (13220110403502), we get a palindrome (33750511505733).

The spelling of 20530401102231 in words is "twenty trillion, five hundred thirty billion, four hundred one million, one hundred two thousand, two hundred thirty-one".