123142001029 has 2 divisors, whose sum is σ = 123142001030. Its totient is φ = 123142001028.

The previous prime is 123142001011. The next prime is 123142001063. The reversal of 123142001029 is 920100241321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72562890625 + 50579110404 = 269375^2 + 224898^2 .

It is an emirp because it is prime and its reverse (920100241321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123142001029 - 2⁷ = 123142000901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123142000994 and 123142001012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123142001729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61571000514 + 61571000515.

It is an arithmetic number, because the mean of its divisors is an integer number (61571000515).

Almost surely, 2^123142001029 is an apocalyptic number.

It is an amenable number.

123142001029 is a deficient number, since it is larger than the sum of its proper divisors (1).

123142001029 is an equidigital number, since it uses as much as digits as its factorization.

123142001029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 123142001029 in words is "one hundred twenty-three billion, one hundred forty-two million, one thousand, twenty-nine".