20142312442 has 16 divisors (see below), whose sum is σ = 35720357760. Its totient is φ = 8334749808.

The previous prime is 20142312373. The next prime is 20142312461. The reversal of 20142312442 is 24421324102.

It is a super-2 number, since 2×20142312442² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24805398 + ... + 24806209.

It is an arithmetic number, because the mean of its divisors is an integer number (2232522360).

Almost surely, 2^20142312442 is an apocalyptic number.

20142312442 is a deficient number, since it is larger than the sum of its proper divisors (15578045318).

20142312442 is a wasteful number, since it uses less digits than its factorization.

20142312442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49611645.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20142312442 its reverse (24421324102), we get a palindrome (44563636544).

The spelling of 20142312442 in words is "twenty billion, one hundred forty-two million, three hundred twelve thousand, four hundred forty-two".