31300103011 has 2 divisors, whose sum is σ = 31300103012. Its totient is φ = 31300103010.

The previous prime is 31300102997. The next prime is 31300103053. The reversal of 31300103011 is 11030100313.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31300103011 - 2²¹ = 31298005859 is a prime.

It is a super-2 number, since 2×31300103011² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31300102982 and 31300103000.

It is not a weakly prime, because it can be changed into another prime (31300106011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15650051505 + 15650051506.

It is an arithmetic number, because the mean of its divisors is an integer number (15650051506).

Almost surely, 2^31300103011 is an apocalyptic number.

31300103011 is a deficient number, since it is larger than the sum of its proper divisors (1).

31300103011 is an equidigital number, since it uses as much as digits as its factorization.

31300103011 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 13.

Adding to 31300103011 its reverse (11030100313), we get a palindrome (42330203324).

The spelling of 31300103011 in words is "thirty-one billion, three hundred million, one hundred three thousand, eleven".