20242111431 has 16 divisors (see below), whose sum is σ = 27512967168. Its totient is φ = 13234989600.

The previous prime is 20242111427. The next prime is 20242111459. The reversal of 20242111431 is 13411124202.

It is not a de Polignac number, because 20242111431 - 2² = 20242111427 is a prime.

It is a super-2 number, since 2×20242111431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20242111398 and 20242111407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20242111031) 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, 208096 + ... + 289461.

It is an arithmetic number, because the mean of its divisors is an integer number (1719560448).

Almost surely, 2^20242111431 is an apocalyptic number.

20242111431 is a deficient number, since it is larger than the sum of its proper divisors (7270855737).

20242111431 is a wasteful number, since it uses less digits than its factorization.

20242111431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497822.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 20242111431 its reverse (13411124202), we get a palindrome (33653235633).

The spelling of 20242111431 in words is "twenty billion, two hundred forty-two million, one hundred eleven thousand, four hundred thirty-one".