20431222354 has 8 divisors (see below), whose sum is σ = 30775063680. Its totient is φ = 10172867796.

The previous prime is 20431222351. The next prime is 20431222379. The reversal of 20431222354 is 45322213402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20431222351) 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, 21371094 + ... + 21372049.

It is an arithmetic number, because the mean of its divisors is an integer number (3846882960).

Almost surely, 2^20431222354 is an apocalyptic number.

20431222354 is a deficient number, since it is larger than the sum of its proper divisors (10343841326).

20431222354 is a wasteful number, since it uses less digits than its factorization.

20431222354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42743384.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 20431222354 its reverse (45322213402), we get a palindrome (65753435756).

The spelling of 20431222354 in words is "twenty billion, four hundred thirty-one million, two hundred twenty-two thousand, three hundred fifty-four".