20301343331 has 4 divisors (see below), whose sum is σ = 20314267464. Its totient is φ = 20288419200.

The previous prime is 20301343297. The next prime is 20301343393. The reversal of 20301343331 is 13334310302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20301343331 - 2¹⁰ = 20301342307 is a prime.

It is a super-2 number, since 2×20301343331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20301343297 and 20301343306.

It is not an unprimeable number, because it can be changed into a prime (20301393331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6459710 + ... + 6462851.

It is an arithmetic number, because the mean of its divisors is an integer number (5078566866).

Almost surely, 2^20301343331 is an apocalyptic number.

20301343331 is a deficient number, since it is larger than the sum of its proper divisors (12924133).

20301343331 is a wasteful number, since it uses less digits than its factorization.

20301343331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12924132.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 20301343331 its reverse (13334310302), we get a palindrome (33635653633).

The spelling of 20301343331 in words is "twenty billion, three hundred one million, three hundred forty-three thousand, three hundred thirty-one".