20542140001 has 8 divisors (see below), whose sum is σ = 21102865280. Its totient is φ = 19981705968.

The previous prime is 20542139977. The next prime is 20542140011. The reversal of 20542140001 is 10004124502.

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

It is a cyclic number.

It is not a de Polignac number, because 20542140001 - 2¹¹ = 20542137953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20542140011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74170 + ... + 215836.

It is an arithmetic number, because the mean of its divisors is an integer number (2637858160).

Almost surely, 2^20542140001 is an apocalyptic number.

It is an amenable number.

20542140001 is a deficient number, since it is larger than the sum of its proper divisors (560725279).

20542140001 is a wasteful number, since it uses less digits than its factorization.

20542140001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145623.

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 20542140001 its reverse (10004124502), we get a palindrome (30546264503).

The spelling of 20542140001 in words is "twenty billion, five hundred forty-two million, one hundred forty thousand, one".