220032310331 has 4 divisors (see below), whose sum is σ = 221979499032. Its totient is φ = 218085121632.

The previous prime is 220032310273. The next prime is 220032310349. The reversal of 220032310331 is 133013230022.

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 220032310331 - 2¹⁴ = 220032293947 is a prime.

It is a super-2 number, since 2×220032310331² (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 (220032310391) 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, 973594181 + ... + 973594406.

It is an arithmetic number, because the mean of its divisors is an integer number (55494874758).

Almost surely, 2^220032310331 is an apocalyptic number.

220032310331 is a deficient number, since it is larger than the sum of its proper divisors (1947188701).

220032310331 is a wasteful number, since it uses less digits than its factorization.

220032310331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947188700.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 220032310331 its reverse (133013230022), we get a palindrome (353045540353).

The spelling of 220032310331 in words is "two hundred twenty billion, thirty-two million, three hundred ten thousand, three hundred thirty-one".