20301023431 has 12 divisors (see below), whose sum is σ = 21986962488. Its totient is φ = 18735828384.

The previous prime is 20301023417. The next prime is 20301023441. The reversal of 20301023431 is 13432010302.

It is not a de Polignac number, because 20301023431 - 2⁹ = 20301022919 is a prime.

It is a super-2 number, since 2×20301023431² (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 = 20301023399 and 20301023408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301023401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1360296 + ... + 1375138.

It is an arithmetic number, because the mean of its divisors is an integer number (1832246874).

Almost surely, 2^20301023431 is an apocalyptic number.

20301023431 is a deficient number, since it is larger than the sum of its proper divisors (1685939057).

20301023431 is a wasteful number, since it uses less digits than its factorization.

20301023431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22962 (or 22949 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20301023431 its reverse (13432010302), we get a palindrome (33733033733).

The spelling of 20301023431 in words is "twenty billion, three hundred one million, twenty-three thousand, four hundred thirty-one".