11131030031331 has 16 divisors (see below), whose sum is σ = 16961906445824. Its totient is φ = 6360462261504.

The previous prime is 11131030031299. The next prime is 11131030031347. The reversal of 11131030031331 is 13313003013111.

It is not a de Polignac number, because 11131030031331 - 2⁵ = 11131030031299 is a prime.

It is a super-2 number, since 2×11131030031331² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11131030031298 and 11131030031307.

It is not an unprimeable number, because it can be changed into a prime (11131030031351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4175911 + ... + 6300816.

It is an arithmetic number, because the mean of its divisors is an integer number (1060119152864).

Almost surely, 2^{11131030031331} is an apocalyptic number.

11131030031331 is a deficient number, since it is larger than the sum of its proper divisors (5830876414493).

11131030031331 is a wasteful number, since it uses less digits than its factorization.

11131030031331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10527330.

The product of its (nonzero) digits is 243, while the sum is 21.

Adding to 11131030031331 its reverse (13313003013111), we get a palindrome (24444033044442).

The spelling of 11131030031331 in words is "eleven trillion, one hundred thirty-one billion, thirty million, thirty-one thousand, three hundred thirty-one".