123404024142 has 96 divisors (see below), whose sum is σ = 324874188288. Its totient is φ = 33088955328.

The previous prime is 123404024099. The next prime is 123404024153. The reversal of 123404024142 is 241420404321.

123404024142 is a `hidden beast` number, since 1 + 2 + 340 + 40 + 241 + 42 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 248128 + ... + 555315.

It is an arithmetic number, because the mean of its divisors is an integer number (3384106128).

Almost surely, 2^123404024142 is an apocalyptic number.

123404024142 is an abundant number, since it is smaller than the sum of its proper divisors (201470164146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123404024142 is a wasteful number, since it uses less digits than its factorization.

123404024142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803534 (or 803531 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 123404024142 its reverse (241420404321), we get a palindrome (364824428463).

The spelling of 123404024142 in words is "one hundred twenty-three billion, four hundred four million, twenty-four thousand, one hundred forty-two".