220231120331 has 4 divisors (see below), whose sum is σ = 220233677664. Its totient is φ = 220228563000.

The previous prime is 220231120313. The next prime is 220231120363. The reversal of 220231120331 is 133021132022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220231120331 - 2¹⁸ = 220230858187 is a prime.

It is a super-3 number, since 3×220231120331³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220231120831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1144820 + ... + 1323281.

It is an arithmetic number, because the mean of its divisors is an integer number (55058419416).

Almost surely, 2^220231120331 is an apocalyptic number.

220231120331 is a deficient number, since it is larger than the sum of its proper divisors (2557333).

220231120331 is an equidigital number, since it uses as much as digits as its factorization.

220231120331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557332.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 220231120331 its reverse (133021132022), we get a palindrome (353252252353).

The spelling of 220231120331 in words is "two hundred twenty billion, two hundred thirty-one million, one hundred twenty thousand, three hundred thirty-one".