20303413131 has 16 divisors (see below), whose sum is σ = 27595416960. Its totient is φ = 13275581760.

The previous prime is 20303413069. The next prime is 20303413183. The reversal of 20303413131 is 13131430302.

It is not a de Polignac number, because 20303413131 - 2¹³ = 20303404939 is a prime.

It is a super-2 number, since 2×20303413131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20303413098 and 20303413107.

It is not an unprimeable number, because it can be changed into a prime (20303413631) 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, 219765 + ... + 298166.

It is an arithmetic number, because the mean of its divisors is an integer number (1724713560).

Almost surely, 2^20303413131 is an apocalyptic number.

20303413131 is a deficient number, since it is larger than the sum of its proper divisors (7292003829).

20303413131 is a wasteful number, since it uses less digits than its factorization.

20303413131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518186.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20303413131 its reverse (13131430302), we get a palindrome (33434843433).

The spelling of 20303413131 in words is "twenty billion, three hundred three million, four hundred thirteen thousand, one hundred thirty-one".