20001312340142 has 48 divisors (see below), whose sum is σ = 35047727443872. Its totient is φ = 8535773675520.

The previous prime is 20001312340129. The next prime is 20001312340199. The reversal of 20001312340142 is 24104321310002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 435327623 + ... + 435373565.

It is an arithmetic number, because the mean of its divisors is an integer number (730160988414).

Almost surely, 2^{20001312340142} is an apocalyptic number.

20001312340142 is a deficient number, since it is larger than the sum of its proper divisors (15046415103730).

20001312340142 is a wasteful number, since it uses less digits than its factorization.

20001312340142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64633 (or 64626 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20001312340142 its reverse (24104321310002), we get a palindrome (44105633650144).

The spelling of 20001312340142 in words is "twenty trillion, one billion, three hundred twelve million, three hundred forty thousand, one hundred forty-two".