13123142142 has 32 divisors (see below), whose sum is σ = 29117612160. Its totient is φ = 3909306720.

The previous prime is 13123142099. The next prime is 13123142171. The reversal of 13123142142 is 24124132131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1681153 + ... + 1688940.

It is an arithmetic number, because the mean of its divisors is an integer number (909925380).

Almost surely, 2^13123142142 is an apocalyptic number.

13123142142 is an abundant number, since it is smaller than the sum of its proper divisors (15994470018).

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

13123142142 is a wasteful number, since it uses less digits than its factorization.

13123142142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370168.

The product of its digits is 1152, while the sum is 24.

Adding to 13123142142 its reverse (24124132131), we get a palindrome (37247274273).

The spelling of 13123142142 in words is "thirteen billion, one hundred twenty-three million, one hundred forty-two thousand, one hundred forty-two".