20122420323 has 32 divisors (see below), whose sum is σ = 28186322944. Its totient is φ = 12765924000.

The previous prime is 20122420319. The next prime is 20122420393. The reversal of 20122420323 is 32302422102.

It is not a de Polignac number, because 20122420323 - 2² = 20122420319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20122420323.

It is not an unprimeable number, because it can be changed into a prime (20122420393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5449908 + ... + 5453598.

It is an arithmetic number, because the mean of its divisors is an integer number (880822592).

Almost surely, 2^20122420323 is an apocalyptic number.

20122420323 is a deficient number, since it is larger than the sum of its proper divisors (8063902621).

20122420323 is an frugal number, since it uses more digits than its factorization.

20122420323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3848 (or 3786 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20122420323 its reverse (32302422102), we get a palindrome (52424842425).

The spelling of 20122420323 in words is "twenty billion, one hundred twenty-two million, four hundred twenty thousand, three hundred twenty-three".