20140312511 has 8 divisors (see below), whose sum is σ = 22343644800. Its totient is φ = 17999046040.

The previous prime is 20140312499. The next prime is 20140312561. The reversal of 20140312511 is 11521304102.

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 20140312511 - 2⁶ = 20140312447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20140312561) 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, 15515771 + ... + 15517068.

It is an arithmetic number, because the mean of its divisors is an integer number (2792955600).

Almost surely, 2^20140312511 is an apocalyptic number.

20140312511 is a deficient number, since it is larger than the sum of its proper divisors (2203332289).

20140312511 is a wasteful number, since it uses less digits than its factorization.

20140312511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31032909.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 20140312511 its reverse (11521304102), we get a palindrome (31661616613).

The spelling of 20140312511 in words is "twenty billion, one hundred forty million, three hundred twelve thousand, five hundred eleven".