220034031231 has 8 divisors (see below), whose sum is σ = 335289952384. Its totient is φ = 125733732120.

The previous prime is 220034031103. The next prime is 220034031241. The reversal of 220034031231 is 132130430022.

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

It is not a de Polignac number, because 220034031231 - 2⁷ = 220034031103 is a prime.

It is a super-2 number, since 2×220034031231² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 10477811011 = 220034031231 / (2 + 2 + 0 + 0 + 3 + 4 + 0 + 3 + 1 + 2 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220034031198 and 220034031207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220034031241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5238905485 + ... + 5238905526.

It is an arithmetic number, because the mean of its divisors is an integer number (41911244048).

Almost surely, 2^220034031231 is an apocalyptic number.

220034031231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

220034031231 is a deficient number, since it is larger than the sum of its proper divisors (115255921153).

220034031231 is a wasteful number, since it uses less digits than its factorization.

220034031231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10477811021.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 220034031231 its reverse (132130430022), we get a palindrome (352164461253).

The spelling of 220034031231 in words is "two hundred twenty billion, thirty-four million, thirty-one thousand, two hundred thirty-one".