20311371335 has 8 divisors (see below), whose sum is σ = 25214116320. Its totient is φ = 15688783264.

The previous prime is 20311371307. The next prime is 20311371347. The reversal of 20311371335 is 53317311302.

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 20311371335 - 2¹⁴ = 20311354951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 20311371298 and 20311371307.

It is a congruent number.

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, 70039067 + ... + 70039356.

It is an arithmetic number, because the mean of its divisors is an integer number (3151764540).

Almost surely, 2^20311371335 is an apocalyptic number.

20311371335 is a deficient number, since it is larger than the sum of its proper divisors (4902744985).

20311371335 is a wasteful number, since it uses less digits than its factorization.

20311371335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140078457.

The product of its (nonzero) digits is 5670, while the sum is 29.

Adding to 20311371335 its reverse (53317311302), we get a palindrome (73628682637).

The spelling of 20311371335 in words is "twenty billion, three hundred eleven million, three hundred seventy-one thousand, three hundred thirty-five".