20112402142 has 8 divisors (see below), whose sum is σ = 34478403696. Its totient is φ = 8619600912.

The previous prime is 20112402137. The next prime is 20112402173. The reversal of 20112402142 is 24120421102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718300063 + ... + 718300090.

It is an arithmetic number, because the mean of its divisors is an integer number (4309800462).

Almost surely, 2^20112402142 is an apocalyptic number.

20112402142 is a deficient number, since it is larger than the sum of its proper divisors (14366001554).

20112402142 is a wasteful number, since it uses less digits than its factorization.

20112402142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436600162.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20112402142 its reverse (24120421102), we get a palindrome (44232823244).

The spelling of 20112402142 in words is "twenty billion, one hundred twelve million, four hundred two thousand, one hundred forty-two".