11321202031 has 8 divisors (see below), whose sum is σ = 11440348304. Its totient is φ = 11202105600.

The previous prime is 11321201999. The next prime is 11321202161. The reversal of 11321202031 is 13020212311.

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 11321202031 - 2⁵ = 11321201999 is a prime.

It is a super-2 number, since 2×11321202031² (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 = 11321201996 and 11321202014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321202331) 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, 601936 + ... + 620458.

It is an arithmetic number, because the mean of its divisors is an integer number (1430043538).

Almost surely, 2^11321202031 is an apocalyptic number.

11321202031 is a deficient number, since it is larger than the sum of its proper divisors (119146273).

11321202031 is an equidigital number, since it uses as much as digits as its factorization.

11321202031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24921.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11321202031 its reverse (13020212311), we get a palindrome (24341414342).

The spelling of 11321202031 in words is "eleven billion, three hundred twenty-one million, two hundred two thousand, thirty-one".