20213410031 has 4 divisors (see below), whose sum is σ = 20910424200. Its totient is φ = 19516395864.

The previous prime is 20213410003. The next prime is 20213410033. The reversal of 20213410031 is 13001431202.

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 20213410031 - 2⁶ = 20213409967 is a prime.

It is a super-2 number, since 2×20213410031² (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 = 20213409991 and 20213410009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213410033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348507041 + ... + 348507098.

It is an arithmetic number, because the mean of its divisors is an integer number (5227606050).

Almost surely, 2^20213410031 is an apocalyptic number.

20213410031 is a deficient number, since it is larger than the sum of its proper divisors (697014169).

20213410031 is an equidigital number, since it uses as much as digits as its factorization.

20213410031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697014168.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20213410031 its reverse (13001431202), we get a palindrome (33214841233).

The spelling of 20213410031 in words is "twenty billion, two hundred thirteen million, four hundred ten thousand, thirty-one".