123142400204 has 6 divisors (see below), whose sum is σ = 215499200364. Its totient is φ = 61571200100.

The previous prime is 123142400203. The next prime is 123142400237. The reversal of 123142400204 is 402004241321.

It is a self number, because there is not a number n which added to its sum of digits gives 123142400204.

It is not an unprimeable number, because it can be changed into a prime (123142400203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15392800022 + ... + 15392800029.

It is an arithmetic number, because the mean of its divisors is an integer number (35916533394).

Almost surely, 2^123142400204 is an apocalyptic number.

It is an amenable number.

123142400204 is a deficient number, since it is larger than the sum of its proper divisors (92356800160).

123142400204 is a wasteful number, since it uses less digits than its factorization.

123142400204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30785600055 (or 30785600053 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 123142400204 its reverse (402004241321), we get a palindrome (525146641525).

The spelling of 123142400204 in words is "one hundred twenty-three billion, one hundred forty-two million, four hundred thousand, two hundred four".