20101102232231 has 2 divisors, whose sum is σ = 20101102232232. Its totient is φ = 20101102232230.

The previous prime is 20101102232203. The next prime is 20101102232249. The reversal of 20101102232231 is 13223220110102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20101102232231 - 2²² = 20101098037927 is a prime.

It is a super-2 number, since 2×20101102232231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20101102232831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050551116115 + 10050551116116.

It is an arithmetic number, because the mean of its divisors is an integer number (10050551116116).

Almost surely, 2^{20101102232231} is an apocalyptic number.

20101102232231 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101102232231 is an equidigital number, since it uses as much as digits as its factorization.

20101102232231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20101102232231 its reverse (13223220110102), we get a palindrome (33324322342333).

The spelling of 20101102232231 in words is "twenty trillion, one hundred one billion, one hundred two million, two hundred thirty-two thousand, two hundred thirty-one".