20043220031 has 8 divisors (see below), whose sum is σ = 21304814400. Its totient is φ = 18790801408.

The previous prime is 20043220019. The next prime is 20043220063. The reversal of 20043220031 is 13002234002.

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 20043220031 - 2⁶ = 20043219967 is a prime.

It is a super-2 number, since 2×20043220031² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20043219991 and 20043220009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043225031) 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, 2289431 + ... + 2298168.

It is an arithmetic number, because the mean of its divisors is an integer number (2663101800).

Almost surely, 2^20043220031 is an apocalyptic number.

20043220031 is a deficient number, since it is larger than the sum of its proper divisors (1261594369).

20043220031 is a wasteful number, since it uses less digits than its factorization.

20043220031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4587873.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20043220031 its reverse (13002234002), we get a palindrome (33045454033).

The spelling of 20043220031 in words is "twenty billion, forty-three million, two hundred twenty thousand, thirty-one".