123145430054 has 16 divisors (see below), whose sum is σ = 185270976000. Its totient is φ = 61388561280.

The previous prime is 123145430053. The next prime is 123145430117. The reversal of 123145430054 is 450034541321.

It is a self number, because there is not a number n which added to its sum of digits gives 123145430054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123145430053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2076494 + ... + 2134974.

It is an arithmetic number, because the mean of its divisors is an integer number (11579436000).

Almost surely, 2^123145430054 is an apocalyptic number.

123145430054 is a deficient number, since it is larger than the sum of its proper divisors (62125545946).

123145430054 is a wasteful number, since it uses less digits than its factorization.

123145430054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61615.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 123145430054 its reverse (450034541321), we get a palindrome (573179971375).

The spelling of 123145430054 in words is "one hundred twenty-three billion, one hundred forty-five million, four hundred thirty thousand, fifty-four".