123030142253141 has 4 divisors (see below), whose sum is σ = 123038776567500. Its totient is φ = 123021507938784.

The previous prime is 123030142253071. The next prime is 123030142253149. The reversal of 123030142253141 is 141352241030321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57578563506916 + 65451578746225 = 7588054^2 + 8090215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123030142253141 is a prime.

It is a super-2 number, since 2×123030142253141² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123030142253098 and 123030142253107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123030142253149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4317135806 + ... + 4317164303.

It is an arithmetic number, because the mean of its divisors is an integer number (30759694141875).

Almost surely, 2^{123030142253141} is an apocalyptic number.

It is an amenable number.

123030142253141 is a deficient number, since it is larger than the sum of its proper divisors (8634314359).

123030142253141 is an equidigital number, since it uses as much as digits as its factorization.

123030142253141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8634314358.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 123030142253141 its reverse (141352241030321), we get a palindrome (264382383283462).

The spelling of 123030142253141 in words is "one hundred twenty-three trillion, thirty billion, one hundred forty-two million, two hundred fifty-three thousand, one hundred forty-one".