220144011423 has 24 divisors (see below), whose sum is σ = 359418798720. Its totient is φ = 119175703920.

The previous prime is 220144011419. The next prime is 220144011449. The reversal of 220144011423 is 324110441022.

It is not a de Polignac number, because 220144011423 - 2² = 220144011419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220144011393 and 220144011402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220144011623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39407163 + ... + 39412748.

It is an arithmetic number, because the mean of its divisors is an integer number (14975783280).

Almost surely, 2^220144011423 is an apocalyptic number.

220144011423 is a deficient number, since it is larger than the sum of its proper divisors (139274787297).

220144011423 is a wasteful number, since it uses less digits than its factorization.

220144011423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78819947 (or 78819940 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 220144011423 its reverse (324110441022), we get a palindrome (544254452445).

The spelling of 220144011423 in words is "two hundred twenty billion, one hundred forty-four million, eleven thousand, four hundred twenty-three".