220131423403 has 6 divisors (see below), whose sum is σ = 233842031396. Its totient is φ = 207182515872.

The previous prime is 220131423377. The next prime is 220131423433. The reversal of 220131423403 is 304324131022.

It is not a de Polignac number, because 220131423403 - 2⁵ = 220131423371 is a prime.

It is a super-2 number, since 2×220131423403² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220131423433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 380849925 + ... + 380850502.

Almost surely, 2^220131423403 is an apocalyptic number.

220131423403 is a deficient number, since it is larger than the sum of its proper divisors (13710607993).

220131423403 is an equidigital number, since it uses as much as digits as its factorization.

220131423403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761700461 (or 761700444 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 220131423403 its reverse (304324131022), we get a palindrome (524455554425).

The spelling of 220131423403 in words is "two hundred twenty billion, one hundred thirty-one million, four hundred twenty-three thousand, four hundred three".