20133131351 has 16 divisors (see below), whose sum is σ = 21738689280. Its totient is φ = 18598493760.

The previous prime is 20133131281. The next prime is 20133131353. The reversal of 20133131351 is 15313133102.

It is a de Polignac number, because none of the positive numbers 2^k-20133131351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133131353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26345 + ... + 202386.

It is an arithmetic number, because the mean of its divisors is an integer number (1358668080).

Almost surely, 2^20133131351 is an apocalyptic number.

20133131351 is a deficient number, since it is larger than the sum of its proper divisors (1605557929).

20133131351 is a wasteful number, since it uses less digits than its factorization.

20133131351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228886.

The product of its (nonzero) digits is 810, while the sum is 23.

Adding to 20133131351 its reverse (15313133102), we get a palindrome (35446264453).

The spelling of 20133131351 in words is "twenty billion, one hundred thirty-three million, one hundred thirty-one thousand, three hundred fifty-one".