11320201031 has 4 divisors (see below), whose sum is σ = 11475272352. Its totient is φ = 11165129712.

The previous prime is 11320201003. The next prime is 11320201063. The reversal of 11320201031 is 13010202311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13010202311 = 35537 ⋅366103.

It is a cyclic number.

It is not a de Polignac number, because 11320201031 - 2¹⁴ = 11320184647 is a prime.

It is a super-2 number, since 2×11320201031² (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 = 11320200997 and 11320201015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11320201091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77535551 + ... + 77535696.

It is an arithmetic number, because the mean of its divisors is an integer number (2868818088).

Almost surely, 2^11320201031 is an apocalyptic number.

11320201031 is a deficient number, since it is larger than the sum of its proper divisors (155071321).

11320201031 is an equidigital number, since it uses as much as digits as its factorization.

11320201031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155071320.

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

Adding to 11320201031 its reverse (13010202311), we get a palindrome (24330403342).

The spelling of 11320201031 in words is "eleven billion, three hundred twenty million, two hundred one thousand, thirty-one".