20110321031 has 8 divisors (see below), whose sum is σ = 21330355200. Its totient is φ = 18906446520.

The previous prime is 20110321027. The next prime is 20110321039. The reversal of 20110321031 is 13012301102.

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 20110321031 - 2² = 20110321027 is a prime.

It is a super-2 number, since 2×20110321031² (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 = 20110320997 and 20110321015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110321039) 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, 4037351 + ... + 4042328.

It is an arithmetic number, because the mean of its divisors is an integer number (2666294400).

Almost surely, 2^20110321031 is an apocalyptic number.

20110321031 is a deficient number, since it is larger than the sum of its proper divisors (1220034169).

20110321031 is a wasteful number, since it uses less digits than its factorization.

20110321031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8079829.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20110321031 its reverse (13012301102), we get a palindrome (33122622133).

The spelling of 20110321031 in words is "twenty billion, one hundred ten million, three hundred twenty-one thousand, thirty-one".