20113002142 has 24 divisors (see below), whose sum is σ = 32625827640. Its totient is φ = 9287549040.

The previous prime is 20113002101. The next prime is 20113002149. The reversal of 20113002142 is 24120031102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113002149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 297084 + ... + 358447.

It is an arithmetic number, because the mean of its divisors is an integer number (1359409485).

Almost surely, 2^20113002142 is an apocalyptic number.

20113002142 is a deficient number, since it is larger than the sum of its proper divisors (12512825498).

20113002142 is a wasteful number, since it uses less digits than its factorization.

20113002142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655608 (or 655585 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20113002142 its reverse (24120031102), we get a palindrome (44233033244).

The spelling of 20113002142 in words is "twenty billion, one hundred thirteen million, two thousand, one hundred forty-two".