220431134001 has 32 divisors (see below), whose sum is σ = 321071708160. Its totient is φ = 133703578944.

The previous prime is 220431133957. The next prime is 220431134003. The reversal of 220431134001 is 100431134022.

It is not a de Polignac number, because 220431134001 - 2⁷ = 220431133873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220431134003) 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, 1747606 + ... + 1869488.

It is an arithmetic number, because the mean of its divisors is an integer number (10033490880).

Almost surely, 2^220431134001 is an apocalyptic number.

It is an amenable number.

220431134001 is a deficient number, since it is larger than the sum of its proper divisors (100640574159).

220431134001 is a wasteful number, since it uses less digits than its factorization.

220431134001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122565.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 220431134001 its sum of digits (21), we get a palindrome (220431134022).

Adding to 220431134001 its reverse (100431134022), we get a palindrome (320862268023).

The spelling of 220431134001 in words is "two hundred twenty billion, four hundred thirty-one million, one hundred thirty-four thousand, one".