130331111 has 2 divisors, whose sum is σ = 130331112. Its totient is φ = 130331110.

The previous prime is 130331101. The next prime is 130331137. The reversal of 130331111 is 111133031.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130331111 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130331101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65165555 + 65165556.

It is an arithmetic number, because the mean of its divisors is an integer number (65165556).

Almost surely, 2^130331111 is an apocalyptic number.

130331111 is a deficient number, since it is larger than the sum of its proper divisors (1).

130331111 is an equidigital number, since it uses as much as digits as its factorization.

130331111 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 14.

The square root of 130331111 is about 11416.2651948875. The cubic root of 130331111 is about 507.0094247464.

Adding to 130331111 its reverse (111133031), we get a palindrome (241464142).

The spelling of 130331111 in words is "one hundred thirty million, three hundred thirty-one thousand, one hundred eleven".