11111030103031 has 2 divisors, whose sum is σ = 11111030103032. Its totient is φ = 11111030103030.

The previous prime is 11111030103011. The next prime is 11111030103067. The reversal of 11111030103031 is 13030103011111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11111030103031 - 2⁹ = 11111030102519 is a prime.

It is a super-2 number, since 2×11111030103031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11111030102996 and 11111030103014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111030103011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555515051515 + 5555515051516.

It is an arithmetic number, because the mean of its divisors is an integer number (5555515051516).

Almost surely, 2^{11111030103031} is an apocalyptic number.

11111030103031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111030103031 is an equidigital number, since it uses as much as digits as its factorization.

11111030103031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27, while the sum is 16.

Adding to 11111030103031 its reverse (13030103011111), we get a palindrome (24141133114142).

The spelling of 11111030103031 in words is "eleven trillion, one hundred eleven billion, thirty million, one hundred three thousand, thirty-one".