20213131233134 has 16 divisors (see below), whose sum is σ = 34726905061728. Its totient is φ = 8643814791552.

The previous prime is 20213131233103. The next prime is 20213131233151. The reversal of 20213131233134 is 43133213131202.

It is a junction number, because it is equal to n+sod(n) for n = 20213131233097 and 20213131233106.

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, 1579638119 + ... + 1579650914.

It is an arithmetic number, because the mean of its divisors is an integer number (2170431566358).

Almost surely, 2^{20213131233134} is an apocalyptic number.

20213131233134 is a deficient number, since it is larger than the sum of its proper divisors (14513773828594).

20213131233134 is a wasteful number, since it uses less digits than its factorization.

20213131233134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159289499.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 20213131233134 its reverse (43133213131202), we get a palindrome (63346344364336).

The spelling of 20213131233134 in words is "twenty trillion, two hundred thirteen billion, one hundred thirty-one million, two hundred thirty-three thousand, one hundred thirty-four".