20210413431 has 16 divisors (see below), whose sum is σ = 29369725056. Its totient is φ = 12287330016.

The previous prime is 20210413429. The next prime is 20210413441. The reversal of 20210413431 is 13431401202.

It is not a de Polignac number, because 20210413431 - 2¹ = 20210413429 is a prime.

It is a super-2 number, since 2×20210413431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20210413398 and 20210413407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210413441) 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, 3118545 + ... + 3125018.

It is an arithmetic number, because the mean of its divisors is an integer number (1835607816).

Almost surely, 2^20210413431 is an apocalyptic number.

20210413431 is a deficient number, since it is larger than the sum of its proper divisors (9159311625).

20210413431 is a wasteful number, since it uses less digits than its factorization.

20210413431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6243662.

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

Adding to 20210413431 its reverse (13431401202), we get a palindrome (33641814633).

The spelling of 20210413431 in words is "twenty billion, two hundred ten million, four hundred thirteen thousand, four hundred thirty-one".