13220220031 has 8 divisors (see below), whose sum is σ = 13544302464. Its totient is φ = 12896215680.

The previous prime is 13220219963. The next prime is 13220220037. The reversal of 13220220031 is 13002202231.

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

It is a cyclic number.

It is not a de Polignac number, because 13220220031 - 2¹³ = 13220211839 is a prime.

It is a super-2 number, since 2×13220220031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13220219987 and 13220220014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220220037) 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, 474226 + ... + 501328.

It is an arithmetic number, because the mean of its divisors is an integer number (1693037808).

Almost surely, 2^13220220031 is an apocalyptic number.

13220220031 is a deficient number, since it is larger than the sum of its proper divisors (324082433).

13220220031 is a wasteful number, since it uses less digits than its factorization.

13220220031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39041.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 13220220031 its reverse (13002202231), we get a palindrome (26222422262).

It can be divided in two parts, 132202200 and 31, that added together give a palindrome (132202231).

The spelling of 13220220031 in words is "thirteen billion, two hundred twenty million, two hundred twenty thousand, thirty-one".