11021313031 has 8 divisors (see below), whose sum is σ = 11180937600. Its totient is φ = 10861810680.

The previous prime is 11021313001. The next prime is 11021313047. The reversal of 11021313031 is 13031312011.

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 11021313031 - 2²⁹ = 10484442119 is a prime.

It is a super-2 number, since 2×11021313031² (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 = 11021312996 and 11021313014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021313001) 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, 159600 + ... + 217978.

It is an arithmetic number, because the mean of its divisors is an integer number (1397617200).

Almost surely, 2^11021313031 is an apocalyptic number.

11021313031 is a deficient number, since it is larger than the sum of its proper divisors (159624569).

11021313031 is an equidigital number, since it uses as much as digits as its factorization.

11021313031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61109.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11021313031 its reverse (13031312011), we get a palindrome (24052625042).

The spelling of 11021313031 in words is "eleven billion, twenty-one million, three hundred thirteen thousand, thirty-one".