123130002102101 has 2 divisors, whose sum is σ = 123130002102102. Its totient is φ = 123130002102100.

The previous prime is 123130002102077. The next prime is 123130002102127. The reversal of 123130002102101 is 101201200031321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102769818627025 + 20360183475076 = 10137545^2 + 4512226^2 .

It is a cyclic number.

It is not a de Polignac number, because 123130002102101 - 2²² = 123129997907797 is a prime.

It is a super-2 number, since 2×123130002102101² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123130002102101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123130002102301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61565001051050 + 61565001051051.

It is an arithmetic number, because the mean of its divisors is an integer number (61565001051051).

Almost surely, 2^{123130002102101} is an apocalyptic number.

It is an amenable number.

123130002102101 is a deficient number, since it is larger than the sum of its proper divisors (1).

123130002102101 is an equidigital number, since it uses as much as digits as its factorization.

123130002102101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 123130002102101 its reverse (101201200031321), we get a palindrome (224331202133422).

The spelling of 123130002102101 in words is "one hundred twenty-three trillion, one hundred thirty billion, two million, one hundred two thousand, one hundred one".