11113020031 has 8 divisors (see below), whose sum is σ = 11186596784. Its totient is φ = 11039509440.

The previous prime is 11113020013. The next prime is 11113020047. The reversal of 11113020031 is 13002031111.

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 11113020031 - 2⁵ = 11113019999 is a prime.

It is a super-2 number, since 2×11113020031² (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 = 11113019993 and 11113020020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113020091) 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, 346675 + ... + 377371.

It is an arithmetic number, because the mean of its divisors is an integer number (1398324598).

Almost surely, 2^11113020031 is an apocalyptic number.

11113020031 is a deficient number, since it is larger than the sum of its proper divisors (73576753).

11113020031 is a wasteful number, since it uses less digits than its factorization.

11113020031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33081.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11113020031 its reverse (13002031111), we get a palindrome (24115051142).

The spelling of 11113020031 in words is "eleven billion, one hundred thirteen million, twenty thousand, thirty-one".