20153012311 has 8 divisors (see below), whose sum is σ = 21189715200. Its totient is φ = 19139094240.

The previous prime is 20153012309. The next prime is 20153012351. The reversal of 20153012311 is 11321035102.

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 20153012311 - 2¹ = 20153012309 is a prime.

It is a super-2 number, since 2×20153012311² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20153012351) 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, 5694391 + ... + 5697928.

It is an arithmetic number, because the mean of its divisors is an integer number (2648714400).

Almost surely, 2^20153012311 is an apocalyptic number.

20153012311 is a deficient number, since it is larger than the sum of its proper divisors (1036702889).

20153012311 is a wasteful number, since it uses less digits than its factorization.

20153012311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11392409.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 20153012311 its reverse (11321035102), we get a palindrome (31474047413).

The spelling of 20153012311 in words is "twenty billion, one hundred fifty-three million, twelve thousand, three hundred eleven".