20212234131 has 4 divisors (see below), whose sum is σ = 26949645512. Its totient is φ = 13474822752.

The previous prime is 20212234129. The next prime is 20212234153. The reversal of 20212234131 is 13143221202.

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

It is not a de Polignac number, because 20212234131 - 2¹ = 20212234129 is a prime.

It is a super-2 number, since 2×20212234131² (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 = 20212234098 and 20212234107.

It is not an unprimeable number, because it can be changed into a prime (20212233131) 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, 3368705686 + ... + 3368705691.

It is an arithmetic number, because the mean of its divisors is an integer number (6737411378).

Almost surely, 2^20212234131 is an apocalyptic number.

20212234131 is a deficient number, since it is larger than the sum of its proper divisors (6737411381).

20212234131 is an equidigital number, since it uses as much as digits as its factorization.

20212234131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6737411380.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20212234131 its reverse (13143221202), we get a palindrome (33355455333).

The spelling of 20212234131 in words is "twenty billion, two hundred twelve million, two hundred thirty-four thousand, one hundred thirty-one".