123401400442141 has 2 divisors, whose sum is σ = 123401400442142. Its totient is φ = 123401400442140.

The previous prime is 123401400442127. The next prime is 123401400442147. The reversal of 123401400442141 is 141244004104321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83177519069241 + 40223881372900 = 9120171^2 + 6342230^2 .

It is a cyclic number.

It is not a de Polignac number, because 123401400442141 - 2¹¹ = 123401400440093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123401400442147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61700700221070 + 61700700221071.

It is an arithmetic number, because the mean of its divisors is an integer number (61700700221071).

Almost surely, 2^{123401400442141} is an apocalyptic number.

It is an amenable number.

123401400442141 is a deficient number, since it is larger than the sum of its proper divisors (1).

123401400442141 is an equidigital number, since it uses as much as digits as its factorization.

123401400442141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 123401400442141 its reverse (141244004104321), we get a palindrome (264645404546462).

The spelling of 123401400442141 in words is "one hundred twenty-three trillion, four hundred one billion, four hundred million, four hundred forty-two thousand, one hundred forty-one".