31026113 has 2 divisors, whose sum is σ = 31026114. Its totient is φ = 31026112.

The previous prime is 31026109. The next prime is 31026119. The reversal of 31026113 is 31162013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22771984 + 8254129 = 4772^2 + 2873^2 .

It is a cyclic number.

It is not a de Polignac number, because 31026113 - 2² = 31026109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31026091 and 31026100.

It is not a weakly prime, because it can be changed into another prime (31026119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15513056 + 15513057.

It is an arithmetic number, because the mean of its divisors is an integer number (15513057).

Almost surely, 2^31026113 is an apocalyptic number.

It is an amenable number.

31026113 is a deficient number, since it is larger than the sum of its proper divisors (1).

31026113 is an equidigital number, since it uses as much as digits as its factorization.

31026113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 31026113 is about 5570.1088858298. The cubic root of 31026113 is about 314.2262457238.

Adding to 31026113 its reverse (31162013), we get a palindrome (62188126).

The spelling of 31026113 in words is "thirty-one million, twenty-six thousand, one hundred thirteen".